Group items tagged

they used very meaningful endpoints. They did not look at risk factors like cholesterol or hypertension or weight. They looked at heart attacks and strokes and death. At the end of the day, that is what really matters.”

it did so using the most rigorous methods. Scientists randomly assigned 7,447 people in Spain who were overweight, were smokers, or had diabetes or other risk factors for heart disease to follow the Mediterranean diet or a low-fat one.

“Now along comes this group and does a gigantic study in Spain that says you can eat a nicely balanced diet with fruits and vegetables and olive oil and lower heart disease by 30 percent,” he said. “And you can actually enjoy life.”

One group assigned to a Mediterranean diet was given extra-virgin olive oil each week and was instructed to use at least 4 four tablespoons a day. The other group got a combination of walnuts, almonds and hazelnuts and was instructed to eat about an ounce of the mix each day. An ounce of walnuts, for example, is about a quarter cup — a generous handful. The mainstays of the diet consisted of at least three servings a day of fruits and at least two servings of vegetables. Participants were to eat fish at least three times a week and legumes, which include beans, peas and lentils, at least three times a week. They were to eat white meat instead of red, and, for those accustomed to drinking, to have at least seven glasses of wine a week with meals.

They were encouraged to avoid commercially made cookies, cakes and pastries and to limit their consumption of dairy products and processed meats.

The participants stayed with the Mediterranean diet, the investigators reported. But those assigned to a low-fat diet did not lower their fat intake very much. So the study wound up comparing the usual modern diet, with its regular consumption of red meat, sodas and commercial baked goods, with a diet that shunned all that.

eating a balanced diet may be beneficial to reduce your risk of cognitive decline

there are many aspects of diet in combination with engaging in a healthy lifestyle that may influence cognitive decline

this new study suggests that improving overall diet quality is an important factor for lowering the risk of memory and thinking loss

"healthy diet" as one containing lots of fruits and vegetables, nuts, fish, moderate alcohol use and minimal red meat

"We just wanted to look at a diverse cohort of people from all around the world and analyze what their risk for cognitive decline would be if they consumed what most organizations would consider a 'healthy diet',"

Participants were tested for their thinking and memory skills, at the start of the study, then again after two and five years.

participants with the healthiest diets were 24% less likely to experience cognitive decline compared to those with the least healthy diets. These individuals were slightly older in age, more active, less likely to smoke and had a lower BMI.

blueberries may boost memory, and that a high intake of saturated and trans fats can have negative effects

“Diets are an extreme case of accepting evidence we want to believe,”

That includes doctors, he added, who overlook that the evidence for the low-fat diets they often recommend is the sort “we would never accept in the practice of medicine.”

Doctors are in a bind, said Dr. Daniel J. Rader, a heart disease specialist at the University of Pennsylvania. When patients ask what to eat, he said, “you have to give them something.”

the best they have are studies that look at intermediate markers of risk, like cholesterol levels. In the end, he said, “most doctors just give dietary platitudes.”

In this study, a higher consumption of fish seemed to make a big difference in keeping your brain young.

People who ate a diet close to the MIND diet saw a 53% lower risk of developing Alzheimer's.

Even people who ate the MIND diet "most" (as opposed to "all") of the time saw a 35% reduced chance of developing the disease.

It has also been shown as a key to helping you live longer. It helps you manage your weight better and can lower your risk for cancer, and cardiovascular diseases.

The good news is that timing is relatively controllable, especially in the long run.

If you’re just starting out in your career, it won’t be easy to find a job that gives you a flexible schedule. The best approach is a strategy of moving toward more flexibility over the course of your life.

There isn’t one formula for finding schedule flexibility. Just make sure all of your important decisions are consistent with an end game of a more flexible schedule. Otherwise you are shutting yourself off from the most accessible lever for happiness — timing.

if you knew that pasta is far lower on the glycemic index than a white potato, you would make a far healthier choice that requires no willpower at all. All it took was knowledge.

The most important thing to know about staying fit is this: If it takes willpower, you’re doing it wrong. Anything that requires willpower is unsustainable in the long run.

studies show that using willpower in one area diminishes how much willpower you have in reserve for other areas. You need to get willpower out of the system

My observation is that you can usually replace willpower with knowledge.

the trick for avoiding unhealthy foods is to make sure you always have access to healthy options that you enjoy eating. Your knowledge of this trick, assuming you use it, makes willpower far less necessary.

don’t give up too much income potential just to get a flexible schedule. There’s no point in having a flexible schedule if you can’t afford to do anything.

the fittest people have systems, not goals, unless they are training for something specific. A sensible system is to continuously learn more about the science of diet and the methods for making healthy food taste great. With that system, weight management will feel automatic. Goals aren’t needed.

Did you know that sleepiness causes you to feel hungry?

Did you know that eating peanuts is a great way to suppress appetite?

Did you know that eating mostly protein instead of simple carbs for lunch will help you avoid the afternoon energy slump?

Cheese adds calories, but the fat content will help suppress your appetite, so you probably come out ahead. If you didn’t already know that, you might end up using willpower to avoid cheese at dinner and willpower again later that night to resist snacking. A little knowledge replaces a lot of willpower.

Did you know that exercise has only a small impact on your weight?

after I started noticing how drained and useless I felt after eating simple carbs, french fries became easy to resist.

I also learned that I can remove problem foods from my diet if I target them for extinction one at a time. It was easy to stop eating three large Snickers every day (which I was doing) when I realized I could eat anything else I wanted whenever I wanted

If you’re on a diet, you’re probably trying to avoid certain types of food, but you’re also trying to limit your portions. Instead of waging war on two fronts, try allowing yourself to eat as much as you want of anything that is healthy.

healthier food is almost self-regulating in the sense that you don’t have an insatiable desire to keep eating it the way you might with junk food. With healthy food, you tend to stop when you feel full

One of the biggest obstacles to healthy eating is the impression that healthy food generally tastes like cardboard. So consider making it a lifelong system to learn how to season and prepare healthy foods

Did you know that eating simple carbs can make you hungrier?

’m limiting my portion size. You only need to do that if you are eating the wrong foods. Eating half of your cake still keeps you addicted to cake. And portion control takes a lot of willpower. You’ll find that healthy food satisfies you sooner, so you don’t crave large portions.

No one can exercise enough to overcome a bad diet. Diet is the right button to push for losing weight, so long as you are active. People who eat right and stay active usually have no problems with weight.

I’m about to share with you the simplest and potentially most effective exercise plan in the world. Here it is: Be active every day.

When you’re active, and you don’t overdo it, you’ll find yourself in a good mood afterward. That reward becomes addictive over time.

After a few months of being moderately active every day, you’ll discover that it is harder to sit and do nothing than it is to get up and do something. That’s the frame of mind you want. You want exercise to become a habit with a reward so it evolves into a useful addiction

the intensity of your workout has a surprisingly small impact on your weight unless you’re running half-marathons every week. If your diet is right, moderate exercise is all you need.

When your body is feeling good, and you have some flexibility in your schedule, you’ll find that the petty annoyances that plague your life become nothing but background noise. And that’s a great launch pad for happiness.

As you find yourself getting healthier and happier, the people in your life will view you differently too. Healthy-looking people generally earn more money, get more offers and enjoy a better social life. All of that will help your happiness.

Keep in mind that happiness is a directional phenomenon. We feel happy when things are moving in the right direction no matter where we are at the moment.

In clearing our plates of meat, eggs and cheese (fat and protein), we ate more grains, pasta and starchy vegetables (carbohydrates). Over the past 50 years, we cut fat intake by 25 percent and increased carbohydrates by more than 30 percent, according to a new analysis of government data. Yet recent science has increasingly shown that a high-carb diet rich in sugar and refined grains increases the risk of obesity, diabetes and heart disease — much more so than a diet high in fat and cholesterol.

In 2013, government advice to reduce salt intake (which remains in the current report) was contradicted by an authoritative Institute of Medicine study. And several recent meta-analyses have cast serious doubt on whether saturated fats are linked to heart disease, as the dietary guidelines continue to assert.

Much of the epidemiological data underpinning the government’s dietary advice comes from studies run by Harvard’s school of public health. In 2011, directors of the National Institute of Statistical Sciences analyzed many of Harvard’s most important findings and found that they could not be reproduced in clinical trials.

Today, we are poised to make the same mistakes. The committee’s new report also advised eliminating “lean meat” from the list of recommended healthy foods, as well as cutting back on red and processed meats. Fewer protein choices will likely encourage Americans to eat even more carbs. It will also have policy implications: Meat could be limited in school lunches and other federal food programs.

It’s possible that a mostly meatless diet could be healthy for all Americans — but then again, it might not be. We simply do not know. There are no rigorous clinical trials on such a diet, and although epidemiological data exists for adult vegetarians, there is none for children.

We have to start looking more skeptically at epidemiological studies and rethinking nutrition policy from the ground up.

Until then, we would be wise to return to what worked better for previous generations: a diet that included fewer grains, less sugar and more animal foods like meat, full-fat dairy and eggs

He came down hard on nutrition in a pull-no-punches 2013 British Medical Journal editorial titled, “Implausible results in human nutrition research,” in which he noted, “Almost every single nutrient imaginable has peer reviewed publications associating it with almost any outcome.”

Ioannidis told me that sussing out the connection between diet and health — nutritional epidemiology — is enormously challenging, and “the tools that we’re throwing at the problem are not commensurate with the complexity and difficulty of the problem.” The biggest of those tools is observational research, in which we collect data on what people eat, and track what happens to them.

He lists plant-based foods — fruit, veg, whole grains, legumes — but acknowledges that we don’t understand enough to prescribe specific combinations or numbers of servings.

funding bias isn’t the only kind. “Fanatical opinions abound in nutrition,” Ioannidis wrote in 2013, and those have bias power too.

“Definitive solutions won’t come from another million observational papers or small randomized trials,” reads the subtitle of Ioannidis’s paper. His is a burn-down-the-house ethos.

When it comes to actual dietary recommendations, the disagreement is stark. “Ioannidis and others say we have no clue, the science is so bad that we don’t know anything,” Hu told me. “I think that’s completely bogus. We know a lot about the basic elements of a healthy diet.”

Give tens of thousands of people that FFQ, and you end up with a ginormous repository of possible correlations. You can zero in on a vitamin, macronutrient or food, and go to town. But not only are you starting with flawed data, you’ve got a zillion possible confounding variables — dietary, demographic, socioeconomic. I’ve heard statisticians call it “noise mining,” and Ioannidis is equally skeptical. “With this type of data, you can get any result you want,” he said. “You can align it to your beliefs.”

Big differences in what people eat track with other differences. Heavy plant-eaters are different from, say, heavy meat-eaters in all kinds of ways (income, education, physical activity, BMI). Red meat consumption correlates with increased risk of dying in an accident as much as dying from heart disease. The amount of faith we put in observational studies is a judgment call.

I find myself in Ioannidis’s camp. What have we learned, unequivocally enough to build a consensus in the nutrition community, about how diet affects health? Well, trans-fats are bad.

Over and over, large population studies get sliced and diced, and it’s all but impossible to figure out what’s signal and what’s noise. Researchers try to do that with controlled trials to test the connections, but those have issues too. They’re expensive, so they’re usually small and short-term. People have trouble sticking to the diet being studied. And scientists are generally looking for what they call “surrogate endpoints,” like increased cholesterol rather than death from heart disease, since it’s impractical to keep a trial going until people die.

, what do we do? Hu and Ioannidis actually have similar suggestions. For starters, they both think we should be looking at dietary patterns rather than single foods or nutrients. They also both want to look across the data sets. Ioannidis emphasizes transparency. He wants to open data to the world and analyze all the data sets in the same way to see if “any signals survive.” Hu is more cautious (partly to safeguard confidentiality

I have a suggestion. Let’s give up on evidence-based eating. It’s given us nothing but trouble and strife. Our tools can’t find any but the most obvious links between food and health, and we’ve found those already.

Instead, let’s acknowledge the uncertainty and eat to hedge against what we don’t know

We’ve got two excellent hedges: variety and foods with nutrients intact (which describes such diets as the Mediterranean, touted by researchers). If you severely limit your foods (vegan, keto), you might miss out on something. Ditto if you eat foods with little nutritional value (sugar, refined grains). Oh, and pay attention to the two things we can say with certainty: Keep your weight down, and exercise.

I used to say I could tell you everything important about diet in 60 seconds. Over the years, my spiel got shorter and shorter as truisms fell by the wayside, and my confidence waned in a field where we know less, rather than more, over time. I’m down to five seconds now: Eat a wide variety of foods with their nutrients intact, keep your weight down and get some exercise.

These are the foods with flowers and bees and sunsets on their labels. That’s the whole point of the film. If I had been eating chocolate doughnuts and soft drinks, we know what would have happened to me. But the fact that this happened when I was following the low-fat diet that we’ve all been prescribed for 35 years – that was surprising.

What was your diet like before the start of the film? A. I kept away from processed foods as much as I could. I’d have eggs for breakfast. I’d eat healthy fats like avocado, and I’d snack on nuts and a little cheese. I’d have lots of fruits and vegetables and protein sources like fish. I just tried to eat real foods, and I kept it really simple.

How did it change during the film? A. I swapped all that for the refined carbohydrates. Cereals, low-fat yogurts and apple juice would be my breakfast instead of eggs and avocado. And lunch would be pasta with pasta sauce, or some vegetables or fish with a teriyaki sauce or some kind of dressing that had added sugars in it.

My calorie intake didn’t change. What I was eating before – the avocados and nuts and other foods – are high in calories. So I kept a similar calorie intake. But on the diet with all the added sugars, I was snacking a lot more. I just never felt full, and it was affecting my moods. What I learned was that I was triggering insulin and all sorts of hormones that were trapping fat in my body.

I don’t think we should ever demonize one nutrient. But when that one single nutrient is now in 80 percent of all foods, we do need to look at it. This is not just about putting sugar in your tea or coffee. It’s pervaded our entire food supply, and people are having far too much of it. And I think most of those people don’t realize how much they’re having.

When I went back to just drinking water and eating food again, the weight dropped, and all my symptoms went away. I think we just need to simplify things. Stick to the perimeter of the supermarket where all the fresh foods are. Buy real foods as much as you can.

“Is there a weight of evidence that says we can totally ignore both dietary cholesterol and LDL? Absolutely not,” he said. “You can legitimately say we’re starting to rethink some things, but ignoring LDL could absolutely result in heart attacks and strokes.

The medical community’s understanding of the danger of cholesterol is changing. Many cardiologists are starting to think that independent of other considerations, the level of LDL in our blood may not be as important as it previously seemed.

In November, the American Heart Association and the American College of Cardiology released new guidelines that redefined the use of statins. While they continue to recommend that people at high risk for heart disease and people with LDL levels above 189 take a statin, the long-standing goal of lowering one’s LDL level to 70 is no longer deemed worthwhile to monitor.

Katz acknowledges that dietary cholesterol may be an innocuous part of an overall healthy diet. “The problem is that people are going to get their dietary cholesterol from things other than fish and eggs; they’re going to get it from meats and dairies. The problem with diets like that is if you eat more of A, you’re probably going to eat less of B. So people who are eating more meat and dairy and high-fat, high-cholesterol foods are eating fewer plants—they’re not eating beans; they’re not eating lentils. So yes, I think it’s entirely confabulated and contrived, and potentially dangerous on the level of lethal.”

Having talked to all of these people and read their work, here is how I walk away from this. Oxidative stress will increasingly be the target of medical treatments and preventive diets. We’ll hear more about the role of blood sugar in Alzheimer’s and continue to focus on moderating intake of refined carbohydrates. The consensus remains that too much LDL is bad for you. We do not have reason to believe that gluten is bad for most people. It does cause reactive symptoms in some people. Peanuts can kill some people, but that does not mean they are bad for everyone

I agree with Katz that the diets consistently shown to have good long-term health outcomes—both mental and physical—include whole grains and fruits, and are not nearly as high in fat as what Perlmutter proposes.

It’s a matter of health and survival. Information and power are inherently related. Our ability to process and communicate information is as much an evolutionary advantage as our opposable thumbs.”

we’re wired to love certain kinds of information, most notably affirmation, so we seek out information that confirms, rather than challenges, our existing beliefs

Just as food companies learned that if they want to sell a lot of cheap calories, they should pack them with salt, fat, and sugar — the stuff that people crave — media companies learned that affirmation sells a lot better than information. Who wants to hear the truth when they can hear that they’re right?”

the information diet works best if you think about it not as denying yourself information, but as consuming more of the right stuff and developing healthy habits.“

Johnson has provided a toolkit of helpful (mostly) free software for a healthy information diet on the book’s site, ranging from productivity apps to ad blockers to various setting hacks to make your favorite services and social web platforms more conducive to info-wellness.

Bohannon had done similar work before — in 2013 he submitted a fake research paper to more than 300 open-access journals as part of a sting operation for the journal Science.

Studies like his are called “underpowered,” meaning that they aren’t designed to distinguish between a real effect and pure luck. A study with thousands of participants being measured for just a few effects is “powerful.” But one like Bohannon’s, with just five people per group being measured according to any of 18 different variables? Any number of factors unrelated to the study could cause one of the variables to fluctuate, allowing researchers to irresponsibly — but not untruthfully — state that eating chocolate while dieting helps you lose more weight.

A responsible scientist shouldn’t conduct a trial like this, Bohannon said, and a responsible scientific journal shouldn’t publish it. But Bohannon is not a nutrition scientist (he does have a PhD in molecular biology) and the International Archives of Medicine, he says, is not the most responsible journal.

According to Bohannon, the journal didn’t peer review his study or even edit it (and the study could have used an edit — “chocolate” is misspelled more than once).

“It’s the reporters,” he told The Post. “The reporters and ultimately the editors. … People who are on the health science beat need to treat it like science, and that has to come from the editors. And if you’re reporting on a scientific study you need to actually look at the paper, you need to talk to a source who has real scientific expertise.”

Bohannon said he didn’t have any ethical qualms about tricking his fellow journalists this way. “I didn’t lie to reporters, except about my name. And whenever they asked me a scientific question about the study I gave them a completely honest answer,” he said. “The whole point is that this was as bad as a lot of science that is considered ‘real’ science. It gets reported without people asking the right questions.”

it’s important not to lose focus on the fact that for all its problems, our modern food system has us living longer and less deprived than centuries past. The challenge is striking balance.

whole grains have consistently shown to be parts of the diets of the longest-lived, healthiest people.

Changing the way we eat is a major change. It will involve multiple decisions every day. Presumably our old habits existed for reasons—convenience, enjoyment, availability, cost, marketing, etc. Modifying the habits that these conditions created means hard work and requires dedication to a cause. I’m not convinced that concern for the health of our bodies years in the future is sufficient.

Viktor Frankl wrote in Man’s Search for Meaning that the key is to avoid the temptation to pursue happiness—like that being sold to us through all of the new-year deals—but to pursue meaning. Piles of research have shown that a sense of purpose is a central to long, healthy life.

There’s purpose to be had in how we eat—in how conscientious we can be, how minimally we can disrupt the world for those that will come after us and those working to produce and procure our food. I think this is a sustainable and worthy resolution for a healthier way to eat, if you’re intent on making one. It works for the mind and body at once, and, most importantly, not just our own.

Not only is this tied to weight gain, especially in the belly, but it also leaves you with cravings. Aspartame is 200 times sweeter than table sugar. Serious drinkers are so used to the super-sweet taste that everything else seems bland in comparison.

Coca-Cola has a different take on what people refer to as an addiction. “Food and beverages, like chocolate, for example, can trigger what scientists call ‘reward centers’ in the brain, but so can other things like music or laughter,” said Daphne Dickerson, a spokeswoman for Coca-Cola. “Regularly consuming food and beverages that taste good and that you enjoy is not the same as being addicted to them.”

In September 2020, Ms. Beller was diagnosed with breast cancer. She didn’t quit Diet Coke until after surgery, when doctors found more cancer and she realized she’d have to undergo chemotherapy.

She used the Quitzilla app, a habit breaker and sobriety counter, which tracked her progress. “Every time I had a craving, just looking at the app did something good in my brain,” she said. She didn’t have a lot of physical side effects, but she did long for the drink. She credits the app with helping her stay on track.

For the past several centuries, most Westerners would have identified themselves fundamentally as Depraved Sinners. In this construct, sin is something you fight like a recurring cancer — part of a daily battle against evil.

But these days, people are more likely to believe in their essential goodness. People who live by the Good Person Construct try to balance their virtuous self-image with their selfish desires. They try to manage the moral plusses and minuses and keep their overall record in positive territory. In this construct, moral life is more like dieting: I give myself permission to have a few cookies because I had salads for lunch and dinner. I give myself permission to cheat a little because, when I look at my overall life, I see that I’m still a good person.

It’s enough to be workably suboptimal, a tolerant, harmless sinner and a generally good guy.

there’s a measurement problem. You can buy a weight scale to get an objective measure of your diet. But you can’t buy a scale of virtues to put on the bathroom floor. And given our awesome capacities for rationalization and self-deception, most of us are going to measure ourselves leniently

The key job in the Good Person Construct is to manage your rationalizations and self-deceptions to keep them from getting egregious. Ariely suggests you reset your moral gauge from time to time. Your moral standards will gradually slip as you become more and more comfortable with your own rationalizations. So step back. Break your patterns and begin anew

I’d add that you really shouldn’t shoot for goodness, which is so vague and forgiving. You should shoot for rectitude. We’re mostly unqualified to judge our own moral performances, so attach yourself to some exterior or social standards.

As we go about doing our Good Person moral calculations, it might be worth asking: Is this good enough? Is this life of minor transgressions refreshingly realistic, given our natures, or is it settling for mediocrity?

Given the poor quality of the typical American diet, this fortification is far from superfluous. In fact, for products like milk and flour, where fortification and enrichment have occurred for so long that they’ve become invisible, it would be almost irresponsible not to add synthetic vitamins.

synthetic vitamins are as essential to food companies as they are to us. To be successful in today’s market, food manufacturers must create products that can be easily transported over long distances and stored for extended periods.

They also need to be sure that their products offer some nutritional value so that customers don’t have to go elsewhere to meet their vitamin needs. But the very processing that’s necessary to create long shelf lives destroys vitamins, among other important nutrients. It’s nearly impossible to create foods that can sit for months in a supermarket that are also naturally vitamin-rich.

Today, it would be easy to blame food marketers for using vitamins to deceive us into buying their products. But our blindness is largely our own fault.

we’ve entered into a complicit agreement with them: They depend on us to buy their products, and we depend on the synthetic vitamins they add to those products to support eating habits that might otherwise leave us deficient

extra vitamins do not protect us from the long-term “diseases of civilization” that are currently ravaging our country, including obesity, heart disease and Type 2 diabetes — many of which are strongly associated with diet.

natural foods contain potentially protective substances such as phytochemicals and polyunsaturated fat that also are affected by processing, but that are not usually replaced. If these turn out to be as important as many researchers suspect, then our exclusive focus on vitamins could mean we’re protecting ourselves against the wrong dangers. It’s as if we’re taking out earthquake insurance policies in an area more at risk for floods.

And adding back vitamins after the fact ignores the issue of synergy: how nutrients work naturally as opposed to when they are isolated. A 2011 study on broccoli, for example, found that giving subjects fresh broccoli florets led them to absorb and metabolize seven times more of the anticancer compounds known as glucosinolates, present in broccoli and other cruciferous vegetables

And yet we refuse to change our eating habits in the ways that would actually protect us, which would require refocusing our diets on minimally processed foods that are naturally nutrient-rich.

The popularity of dietary supplements and vitamin-enhanced processed “health” foods means that even those of us who try to do right by our health are often getting it wrong.

we mustn’t let it distract us from an even more fundamental question: how we’ve allowed the word “vitamin” to become synonymous with “health.”

People who have type 2 diabetes are about twice as likely to get Alzheimer’s, and people who have diabetes and are treated with insulin are also more likely to get Alzheimer’s, suggesting elevated insulin plays a role in Alzheimer’s. In fact, many studies have found that elevated insulin, or “hyperinsulinemia,” significantly increases your risk of Alzheimer’s. On the other hand, people with type 1 diabetes, who don’t make insulin at all, are also thought to have a higher risk of Alzheimer’s. How could these both be true?

Schilling posits this happens because of the insulin-degrading enzyme, a product of insulin that breaks down both insulin and amyloid proteins in the brain—the same proteins that clump up and lead to Alzheimer’s disease. People who don’t have enough insulin, like those whose bodies’ ability to produce insulin has been tapped out by diabetes, aren’t going to make enough of this enzyme to break up those brain clumps. Meanwhile, in people who use insulin to treat their diabetes and end up with a surplus of insulin, most of this enzyme gets used up breaking that insulin down, leaving not enough enzyme to address those amyloid brain clumps.

this can happen even in people who don’t have diabetes yet—who are in a state known as “prediabetes.” It simply means your blood sugar is higher than normal, and it’s something that affects roughly 86 million Americans.

In a 2012 study, Roberts broke nearly 1,000 people down into four groups based on how much of their diet came from carbohydrates. The group that ate the most carbs had an 80 percent higher chance of developing mild cognitive impairment—a pit stop on the way to dementia—than those who ate the smallest amount of carbs.

“It’s hard to be sure at this stage, what an ‘ideal’ diet would look like,” she said. “There’s a suggestion that a Mediterranean diet, for example, may be good for brain health.”

there are several theories out there to explain the connection between high blood sugar and dementia. Diabetes can also weaken the blood vessels, which increases the likelihood that you’ll have ministrokes in the brain, causing various forms of dementia. A high intake of simple sugars can make cells, including those in the brain, insulin resistant, which could cause the brain cells to die. Meanwhile, eating too much in general can cause obesity. The extra fat in obese people releases cytokines, or inflammatory proteins that can also contribute to cognitive deterioration, Roberts said. In one study by Gottesman, obesity doubled a person’s risk of having elevated amyloid proteins in their brains later in life.

even people who don’t have any kind of diabetes should watch their sugar intake, she said.

as these and other researchers point out, decisions we make about food are one risk factor we can control. And it’s starting to look like decisions we make while we’re still relatively young can affect our future cognitive health.

“Alzheimer’s is like a slow-burning fire that you don’t see when it starts,” Schilling said. It takes time for clumps to form and for cognition to begin to deteriorate. “By the time you see the signs, it’s way too late to put out the fire.”

"I've been known as the player that doesn't want anybody to come to their events," she told The Inquirer. "It's not a superstitious thing, it's just something that works for me. In order for me to be at my best -- and if I'm at my best, that essentially helps the team -- I just want to go over there and do my thing."

Co-captain Alex Morgan likes to go against the grain, so it's no surprise that she's made 13 her lucky number. In a video for Team USA, Morgan said she found the superstitions toward the number strange and decided to make it her own.

Rapinoe told POPSUGAR that her diet is something she makes sure is consistent. According to the publication, she said there are certain things she absolutely must eat in order to get ready for a game, and her special diet is something she just can't deviate from.

The Rapinoe diet:Breakfast: She has a cup of coffee and a breakfast sandwich consisting of two eggs, sauteed onions and spinach on an English muffin.Lunch: Avocado toast with a chicken thigh and a side of fruit.Dinner: Two chicken thighs, sweet potatoes and asparagusPregame snack: Energy bar or a handful of almonds.

Every player has their own ritual for preparing for game day: For some it may be relaxing and focusing on the game -- for Christen Press, it's yoga and shopping.

Press said she likes to start her day by meditating, having a good breakfast, doing some yoga and she prefers to wrap it all up with some shopping at the mall.

Press said she also likes to make "a really big purchase" on game day "maybe like a fancy pair of shoes or a purse I would not normally splurge on." She says if she plays well, scores, or it's a good game, she gets to keep it.

start with epistemic bubbles

That omission might be purposeful

But that omission can also be entirely inadvertent. Even if we’re not actively trying to avoid disagreement, our Facebook friends tend to share our views and interests

An ‘echo chamber’ is a social structure from which other relevant voices have been actively discredited. Where an epistemic bubble merely omits contrary views, an echo chamber brings its members to actively distrust outsiders.

an echo chamber is something like a cult. A cult isolates its members by actively alienating them from any outside sources. Those outside are actively labelled as malignant and untrustworthy.

In epistemic bubbles, other voices are not heard; in echo chambers, other voices are actively undermined.

The way to break an echo chamber is not to wave “the facts” in the faces of its members. It is to attack the echo chamber at its root and repair that broken trust.

Looking to others for corroboration is a basic method for checking whether one has reasoned well or badly

They have been in the limelight lately, most famously in Eli Pariser’s The Filter Bubble (2011) and Cass Sunstein’s #Republic: Divided Democracy in the Age of Social Media (2017).

The general gist: we get much of our news from Facebook feeds and similar sorts of social media. Our Facebook feed consists mostly of our friends and colleagues, the majority of whom share our own political and cultural views

various algorithms behind the scenes, such as those inside Google search, invisibly personalise our searches, making it more likely that we’ll see only what we want to see. These processes all impose filters on information.

Such filters aren’t necessarily bad. The world is overstuffed with information, and one can’t sort through it all by oneself: filters need to be outsourced.

That’s why we all depend on extended social networks to deliver us knowledge

any such informational network needs the right sort of broadness and variety to work

Each individual person in my network might be superbly reliable about her particular informational patch but, as an aggregate structure, my network lacks what Sanford Goldberg in his book Relying on Others (2010) calls ‘coverage-reliability’. It doesn’t deliver to me a sufficiently broad and representative coverage of all the relevant information.

Epistemic bubbles also threaten us with a second danger: excessive self-confidence.

An ‘epistemic bubble’ is an informational network from which relevant voices have been excluded by omission

Suppose that I believe that the Paleo diet is the greatest diet of all time. I assemble a Facebook group called ‘Great Health Facts!’ and fill it only with people who already believe that Paleo is the best diet. The fact that everybody in that group agrees with me about Paleo shouldn’t increase my confidence level one bit. They’re not mere copies – they actually might have reached their conclusions independently – but their agreement can be entirely explained by my method of selection.

Luckily, though, epistemic bubbles are easily shattered. We can pop an epistemic bubble simply by exposing its members to the information and arguments that they’ve missed.

echo chambers are a far more pernicious and robust phenomenon.

amieson and Cappella’s book is the first empirical study into how echo chambers function

echo chambers work by systematically alienating their members from all outside epistemic sources.

Their research centres on Rush Limbaugh, a wildly successful conservative firebrand in the United States, along with Fox News and related media

His constant attacks on the ‘mainstream media’ are attempts to discredit all other sources of knowledge. He systematically undermines the integrity of anybody who expresses any kind of contrary view.

outsiders are not simply mistaken – they are malicious, manipulative and actively working to destroy Limbaugh and his followers. The resulting worldview is one of deeply opposed force, an all-or-nothing war between good and evil

The result is a rather striking parallel to the techniques of emotional isolation typically practised in cult indoctrination

cult indoctrination involves new cult members being brought to distrust all non-cult members. This provides a social buffer against any attempts to extract the indoctrinated person from the cult.

The echo chamber doesn’t need any bad connectivity to function. Limbaugh’s followers have full access to outside sources of information

As Elijah Millgram argues in The Great Endarkenment (2015), modern knowledge depends on trusting long chains of experts. And no single person is in the position to check up on the reliability of every member of that chain

Their worldview can survive exposure to those outside voices because their belief system has prepared them for such intellectual onslaught.

exposure to contrary views could actually reinforce their views. Limbaugh might offer his followers a conspiracy theory: anybody who criticises him is doing it at the behest of a secret cabal of evil elites, which has already seized control of the mainstream media.

Perversely, exposure to outsiders with contrary views can thus increase echo-chamber members’ confidence in their insider sources, and hence their attachment to their worldview.

‘evidential pre-emption’. What’s happening is a kind of intellectual judo, in which the power and enthusiasm of contrary voices are turned against those contrary voices through a carefully rigged internal structure of belief.

One might be tempted to think that the solution is just more intellectual autonomy. Echo chambers arise because we trust others too much, so the solution is to start thinking for ourselves.

that kind of radical intellectual autonomy is a pipe dream. If the philosophical study of knowledge has taught us anything in the past half-century, it is that we are irredeemably dependent on each other in almost every domain of knowledge

Limbaugh’s followers regularly read – but do not accept – mainstream and liberal news sources. They are isolated, not by selective exposure, but by changes in who they accept as authorities, experts and trusted sources.

we depend on a vastly complicated social structure of trust. We must trust each other, but, as the philosopher Annette Baier says, that trust makes us vulnerable. Echo chambers operate as a kind of social parasite on that vulnerability, taking advantage of our epistemic condition and social dependency.

I am quite confident that there are plenty of echo chambers on the political Left. More importantly, nothing about echo chambers restricts them to the arena of politics

The world of anti-vaccination is clearly an echo chamber, and it is one that crosses political lines. I’ve also encountered echo chambers on topics as broad as diet (Paleo!), exercise technique (CrossFit!), breastfeeding, some academic intellectual traditions, and many, many more

Here’s a basic check: does a community’s belief system actively undermine the trustworthiness of any outsiders who don’t subscribe to its central dogmas? Then it’s probably an echo chamber.

much of the recent analysis has lumped epistemic bubbles together with echo chambers into a single, unified phenomenon. But it is absolutely crucial to distinguish between the two.

Epistemic bubbles are rather ramshackle; they go up easily, and they collapse easily

Echo chambers are far more pernicious and far more robust. They can start to seem almost like living things. Their belief systems provide structural integrity, resilience and active responses to outside attacks

the two phenomena can also exist independently. And of the events we’re most worried about, it’s the echo-chamber effects that are really causing most of the trouble.

new data does, in fact, seem to show that people on Facebook actually do see posts from the other side, or that people often visit websites with opposite political affiliation.

their basis for evaluation – their background beliefs about whom to trust – are radically different. They are not irrational, but systematically misinformed about where to place their trust.

Many people have claimed that we have entered an era of ‘post-truth’.

Not only do some political figures seem to speak with a blatant disregard for the facts, but their supporters seem utterly unswayed by evidence. It seems, to some, that truth no longer matters.

This is an explanation in terms of total irrationality. To accept it, you must believe that a great number of people have lost all interest in evidence or investigation, and have fallen away from the ways of reason.

echo chambers offers a less damning and far more modest explanation. The apparent ‘post-truth’ attitude can be explained as the result of the manipulations of trust wrought by echo chambers.

We don’t have to attribute a complete disinterest in facts, evidence or reason to explain the post-truth attitude. We simply have to attribute to certain communities a vastly divergent set of trusted authorities.

An echo chamber doesn’t destroy their members’ interest in the truth; it merely manipulates whom they trust and changes whom they accept as trustworthy sources and institutions.

in many ways, echo-chamber members are following reasonable and rational procedures of enquiry. They’re engaging in critical reasoning. They’re questioning, they’re evaluating sources for themselves, they’re assessing different pathways to information. They are critically examining those who claim expertise and trustworthiness, using what they already know about the world

none of this weighs against the existence of echo chambers. We should not dismiss the threat of echo chambers based only on evidence about connectivity and exposure.

Notice how different what’s going on here is from, say, Orwellian doublespeak, a deliberately ambiguous, euphemism-filled language designed to hide the intent of the speaker.

echo chambers don’t trade in vague, ambiguous pseudo-speech. We should expect that echo chambers would deliver crisp, clear, unambiguous claims about who is trustworthy and who is not

clearly articulated conspiracy theories, and crisply worded accusations of an outside world rife with untrustworthiness and corruption.

Once an echo chamber starts to grip a person, its mechanisms will reinforce themselves.

In an epistemically healthy life, the variety of our informational sources will put an upper limit to how much we’re willing to trust any single person. Everybody’s fallible; a healthy informational network tends to discover people’s mistakes and point them out. This puts an upper ceiling on how much you can trust even your most beloved leader

nside an echo chamber, that upper ceiling disappears.

Being caught in an echo chamber is not always the result of laziness or bad faith. Imagine, for instance, that somebody has been raised and educated entirely inside an echo chamber

when the child finally comes into contact with the larger world – say, as a teenager – the echo chamber’s worldview is firmly in place. That teenager will distrust all sources outside her echo chamber, and she will have gotten there by following normal procedures for trust and learning.

It certainly seems like our teenager is behaving reasonably. She could be going about her intellectual life in perfectly good faith. She might be intellectually voracious, seeking out new sources, investigating them, and evaluating them using what she already knows.

The worry is that she’s intellectually trapped. Her earnest attempts at intellectual investigation are led astray by her upbringing and the social structure in which she is embedded.

Echo chambers might function like addiction, under certain accounts. It might be irrational to become addicted, but all it takes is a momentary lapse – once you’re addicted, your internal landscape is sufficiently rearranged such that it’s rational to continue with your addiction

Similarly, all it takes to enter an echo chamber is a momentary lapse of intellectual vigilance. Once you’re in, the echo chamber’s belief systems function as a trap, making future acts of intellectual vigilance only reinforce the echo chamber’s worldview.

There is at least one possible escape route, however. Notice that the logic of the echo chamber depends on the order in which we encounter the evidence. An echo chamber can bring our teenager to discredit outside beliefs precisely because she encountered the echo chamber’s claims first. Imagine a counterpart to our teenager who was raised outside of the echo chamber and exposed to a wide range of beliefs. Our free-range counterpart would, when she encounters that same echo chamber, likely see its many flaws

Those caught in an echo chamber are giving far too much weight to the evidence they encounter first, just because it’s first. Rationally, they should reconsider their beliefs without that arbitrary preference. But how does one enforce such informational a-historicity?

The escape route is a modified version of René Descartes’s infamous method.

Meditations on First Philosophy (1641). He had come to realise that many of the beliefs he had acquired in his early life were false. But early beliefs lead to all sorts of other beliefs, and any early falsehoods he’d accepted had surely infected the rest of his belief system.

The only solution, thought Descartes, was to throw all his beliefs away and start over again from scratch.

He could start over, trusting nothing and no one except those things that he could be entirely certain of, and stamping out those sneaky falsehoods once and for all. Let’s call this the Cartesian epistemic reboot.

Notice how close Descartes’s problem is to our hapless teenager’s, and how useful the solution might be. Our teenager, like Descartes, has problematic beliefs acquired in early childhood. These beliefs have infected outwards, infesting that teenager’s whole belief system. Our teenager, too, needs to throw everything away, and start over again.

Let’s call the modernised version of Descartes’s methodology the social-epistemic reboot.

when she starts from scratch, we won’t demand that she trust only what she’s absolutely certain of, nor will we demand that she go it alone

For the social reboot, she can proceed, after throwing everything away, in an utterly mundane way – trusting her senses, trusting others. But she must begin afresh socially – she must reconsider all possible sources of information with a presumptively equanimous eye. She must take the posture of a cognitive newborn, open and equally trusting to all outside sources

we’re not asking people to change their basic methods for learning about the world. They are permitted to trust, and trust freely. But after the social reboot, that trust will not be narrowly confined and deeply conditioned by the particular people they happened to be raised by.

Such a profound deep-cleanse of one’s whole belief system seems to be what’s actually required to escape. Look at the many stories of people leaving cults and echo chambers

Take, for example, the story of Derek Black in Florida – raised by a neo-Nazi father, and groomed from childhood to be a neo-Nazi leader. Black left the movement by, basically, performing a social reboot. He completely abandoned everything he’d believed in, and spent years building a new belief system from scratch. He immersed himself broadly and open-mindedly in everything he’d missed – pop culture, Arabic literature, the mainstream media, rap – all with an overall attitude of generosity and trust.

It was the project of years and a major act of self-reconstruction, but those extraordinary lengths might just be what’s actually required to undo the effects of an echo-chambered upbringing.

we need to attack the root, the systems of discredit themselves, and restore trust in some outside voices.

Stories of actual escapes from echo chambers often turn on particular encounters – moments when the echo-chambered individual starts to trust somebody on the outside.

Black’s is case in point. By high school, he was already something of a star on neo-Nazi media, with his own radio talk-show. He went on to college, openly neo-Nazi, and was shunned by almost every other student in his community college. But then Matthew Stevenson, a Jewish fellow undergraduate, started inviting Black to Stevenson’s Shabbat dinners. In Black’s telling, Stevenson was unfailingly kind, open and generous, and slowly earned Black’s trust. This was the seed, says Black, that led to a massive intellectual upheaval – a slow-dawning realisation of the depths to which he had been misled

Similarly, accounts of people leaving echo-chambered homophobia rarely involve them encountering some institutionally reported fact. Rather, they tend to revolve around personal encounters – a child, a family member, a close friend coming out.

hese encounters matter because a personal connection comes with a substantial store of trust.

We don’t simply trust people as educated experts in a field – we rely on their goodwill. And this is why trust, rather than mere reliability, is the key concept

goodwill is a general feature of a person’s character. If I demonstrate goodwill in action, then you have some reason to think that I also have goodwill in matters of thought and knowledge.

f one can demonstrate goodwill to an echo-chambered member – as Stevenson did with Black – then perhaps one can start to pierce that echo chamber.

the path I’m describing is a winding, narrow and fragile one. There is no guarantee that such trust can be established, and no clear path to its being established systematically.

what we’ve found here isn’t an escape route at all. It depends on the intervention of another. This path is not even one an echo-chamber member can trigger on her own; it is only a whisper-thin hope for rescue from the outside.

9. You run into a higher total number of people than would have ever been true of our pre-agrarian hominid ancestors.

. You have the option of spending 90% of your waking hours sitting at a desk – and you often exercise this option.

3. You were raised in some variant of a nuclear family – with less assistance from aunts, uncles, older cousins, and grandparents, than would have been typical of our nomadic ancestors.2. You spend a great deal of time interacting with “screens” and “devices” – having the evolutionarily unprecedented possibility of almost never having to be bored at all. 1. You can eat an entire diet of processed foods – and you live in a world where processed foods (think McDonald’s …) are cheaper and more accessible than natural foods.