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Pilot often tops the list of most stressful careers, both in the amount of perceived stress and on quantifiable metrics of stress, like rates of burnout and health issues

For pilots, the basic requirements of the job are a major source of stress. “Number one, it’s what we call a high-consequence industry,” Bowen says. “When pilots make mistakes, the consequences can be catastrophic.”

sychologists think about stress on a curve: At the bottom, without stress, it’s hard to perform with excellence. As stress and arousal start to creep up, performance does too.

Although the precise role of neurogenesis in memory is still controversial, more than a decade of research has demonstrated that boosting neurogenesis with exercise and antidepressants such as Prozac can increase rodents' ability to learn new information about places and events. A few years ago, however, neuroscientist Paul Frankland of the Hospital for Sick Children in Toronto, Canada, noticed that some of the animals in his experiment actually did worse on certain memory tasks when their neuron birth rates had been ramped up. In particular, they performed poorly on tests that required them to retain details about past events.

It is difficult to completely eliminate the birth of new neurons in infant mice, but by genetically engineering dividing neural stem cells to self-destruct the team was able to achieve about a 50% reduction of neurogenesis in the animals, Frankland says. With less neurogenesis, the young rodents acted more like adult mice in the experiment. They froze when first placed in the box for roughly a week, rather than just 1 day, after receiving the foot shocks.

The record 3.3 million jobless claims reported Thursday mark the beginning of an economic crisis facing American workers and businesses — a slump, experts say, that will only end when the coronavirus pandemic is contained.

Although no official figures exist yet, the unemployment rate has likely jumped to at least 5.5 percent, says economist Martha Gimbel of Schmidt Futures, a level not seen since 2015 and up from 3.5 percent in February.“The most terrifying part about this is this is likely just the beginning of the layoffs,” Gimbel said

The bill, which gives most Americans checks worth $1,200 or more and provides billions in low-cost loans to businesses, is likely to provide a lifeline to workers and companies facing devastation, but it won’t stop a severe recession nor be adequate to sustain workers if the coronavirus health crisis lasts more than a month or two.

Sometime in the next few days, the 100,000th American will succumb to Covid-19 in a pandemic that President Donald Trump once predicted would just "miraculously" disappear.

In his most politically significant maneuver, he heaped intense pressure on North Carolina's Democratic governor to permit a normal, crowded Republican National Convention, despite fears such a mass gathering could seed virus hot spots. Trump warned he could pull the huge money-earner out of Charlotte, which was picked to play host in August.

And he indulged his preoccupations on his tax returns, Hillary Clinton, Fox News, slanders against MSNBC host Joe Scarborough, the Russia investigation, Joe Biden's mental health, former Attorney General Jeff Sessions, mail-in voting in November and highlighted dangerous and unproven Covid-19 therapies promoted on conservative media he has tested himself.

President Trump is known to say what's on his mind, to go with his gut and accentuate the positive. That approach is now colliding with a public health emergency in the form of coronavirus.

The challenge posed by Trump's breezy style was on full display Wednesday night in an interview in which he disputed the World Health Organization's recent coronavirus death rate estimate of 3.4%. "Well, I think the 3.4% is really a false number," Trump told Sean Hannity on Fox News. "Now, this is just my hunch, and — but based on a lot of conversations with a lot of people that do this, because a lot of people will have this, and it's very mild. They will get better very rapidly. They don't even see a doctor."

It's a challenge for any politician to accurately convey public health messages: to encourage preparedness and avoid inciting fear without underplaying or overselling the risks. That challenge is particularly acute for Trump given his free-flowing communications style. During the interview, Trump also revealed that he was concerned that repatriating Americans from the Diamond Princess cruise ship that was held in Japan last month would "look bad" because it would increase the total number of coronavirus cases in the United States. "I felt we had to do it. And, in one way, I hated to do it statistically," Trump said.

The attending physician at the intensive care unit had called that morning and asked whether they should include a Do Not Resuscitate order in my dad's chart. They had asked before. I had been indecisive. A successful resuscitation would extend his life. But it might also lead to brain damage.

"If it continues in this direction," he told me, "we're talking about a single-digit chance of survival."

I suspected that my father had a will and a health care directive inside the house. I put on my mask but couldn't find a clean pair of latex gloves in my duffel bag. It was cold in the backyard. I had a pair of leather gloves. I put those on and entered my childhood home for the first time in weeks. My mother barely registered my presence. She was crying on the couch.

What's that worn-out phrase? Shouting into the wind? Well, after a decade of rising pollution, failed politics and worsening disasters, it seems the many, many of us who care about the climate crisis increasingly are shouting into the hurricane, if not the apocalypse.

On the cusp of 2020, the state of the planet is far more dire than in 2010. Preserving a safe and healthy ecological system is no longer a realistic possibility. Now, we're looking at less bad options, ceding the fact that the virtual end of coral reefs, the drowning of some island nations, the worsening of already-devastating storms and the displacement of millions -- they seem close to inevitable. The climate crisis is already costly, deadly and deeply unjust, putting the most vulnerable people in the world, often who've done the least to cause this, at terrible risk.

There are two numbers you need to understand to put this moment in perspective.The first is 1.5. The Paris Agreement -- the international treaty on climate change, which admittedly is in trouble, but also is the best thing we've got -- sets the goal of limiting warming to 1.5 or, at most, below 2 degrees Celsius of warming.

Ethicists and physicians are concerned that, amid a desire to put an end to the Covid-19 pandemic, developers of drugs and vaccines have become overly enthusiastic about the chances their products will work.

Oxford has recently walked back some of its optimism, but for months, it set a tone that its vaccine was the most promising, without any solid evidence that this was based in fact.

Third, one leader in the Oxford team has gone so far as to denigrate other teams trying to get a Covid vaccine on the market, calling their technology "weird" and labeling it as merely "noise." Such name-calling is highly unusual and aggressive among scientists.

With traditional campaigning abandoned and the Democrats' presidential front-runner hunkered down at home, deep-pocketed Democratic groups are racing to hit President Donald Trump over his response to the coronavirus pandemic.

"This crisis could be the defining issue of this election," Kyle Tharp, of the nonprofit group Acronym, said Wednesday. "Now more than ever, voters need to be made aware of how Trump's handling of this threat and downplaying of its impact has made it worse and has made Americans less safe."

"Crisis comes to every presidency. We don't blame them for that. What matters is how they handle it," the narrator says, before saying that Trump "let the virus spread unchecked across America."

Science has been exploring the connection between happiness and longevity for some time. A 2011 analysis of nearly 4,000 Brits found those who said they felt content, happy or excited on a typical day were up to 35% less likely to die prematurely. In a 2016 study, a positive outlook was associated with longer life for nearly 4,000 older French men and women studied over 22 years.

According to research on the Positive Psychology Center website, striving for well-being will allow you to perform better at work, have better relationships, a stronger immune system, fewer sleep problems, lower levels of burnout, better physical health and -- you'll live longer.

"Happiness comes in different sizes and flavors," said cardiologist Dr. Alan Rozanski, a professor of medicine at the Icahn School of Medicine at Mount Sinai who studies optimism."There is the transient type, fed by such things as a walk in a park, spending time with a friend, or eating that ice cream you love," he continued. "But these feelings of happiness come and go."

Coronavirus poses daunting challenges for economic policymakers. Public health efforts to contain the virus rely on "social distancing" by encouraging people to stay home and requiring businesses to reduce their output. In the past, the primary tools the government used to get our economy going focused on raising spending by encouraging people to do more of their usual activities. But that interferes with the public health effort against coronavirus.

In a typical recession, these effects are desirable. Unfortunately, what worked in previous recessions won't work for coronavirus. If schools and businesses are closed by order of public health authorities, then lower interest rates and tax cuts do not increase spending much. Instead, people are likely to save the money, undermining the stimulus effect. And if people do spend the money instead of saving it, monetary and fiscal stimulus may harm public health by encouraging people to go out and spend.

"It is difficult to predict how organisms will respond to changes in extreme events because these events tend to be, by definition, quite rare," Botero said. "But we can have a pretty good idea of how any given species may respond to current changes in this aspect of climate -- if we pay attention to its natural history, and have some idea of the climatic regime it has experienced in the past."

develop an evolutionary model of how populations respond to rare environmental extremes. (Think: 500-year floods.) These rare events can be tricky for evolution because it is difficult to adapt to hazards that are almost never encountered

Haaland and Botero also found that factors speeding up trait evolution are generally likely to hinder -- rather than favor -- adaptation to rare selection events. Part of the reason: High mutation rates tend to facilitate the process of adaptation to normal conditions during the long intervals in between environmental extremes.

Studies show that college-educated white Americans value having choice — and yet having too much choice can paralyze and lead to dissatisfaction

Markus and Schwartz start by noting that, to college-educated Americans, it seems obvious that more choice leads to greater freedom and autonomy and, thus, wellbeing. The authors write that this “model of the self as independent and freely choosing” is so pervasive in middle-class U.S. culture that it’s invisible. And yet, from a global perspective, this reverence for choice and autonomy is unusual. Many cultures see people not primarily as inherently independent individuals but as interdependent selves who exist in relationship to others.

in one study, researchers gave South Asian Indians and white Americans the chance to choose and evaluate a pen. In some cases, once a subject made their choice, the experimenter told them that they couldn’t have that pen after all. This “usurped choice” condition made no difference in the Indian participants’ responses, but it led white Americans to give a lower rating to the pen they ended up with.

In 2014, the American Academy of Pediatrics recommended that middle and high school start no earlier than 8:30 a.m. And just this week, California was the first state to pass into law school start times of no earlier than 8 a.m. for middle schools and 8:30 a.m.

The research is clear that sleep is critical for healthy functioning and development at all points across the lifespan. Sleep disturbances have been linked to a host of outcomes including more difficulty concentrating and learning new material, lower academic performance, higher rates of obesity, increased inflammation, higher mortality, and compromised psychological health.

As a result of the mismatch between biological changes and earlier school start times, teenagers are often unable to sleep the recommended 8-10 hours per night that is recommended for this age. In fact, national studies show that teenagers are one of the most sleep-deprived groups in the country with only 15 percent getting the recommended hours of sleep.

Benoit Monin, assistant professor of psychology at Stanford University, showed college students 80 photos of faces, then asked them which ones they recognized from among the 40 they'd seen in an earlier session. The more attractive the photo (as rated by another group of students) the more likely it was to be recognized—regardless of whether the face had been seen before.

"The face's attractiveness actually changes your perception of your past," in this case, the perception of whether you've seen the face before. The shortcut may lead to errors, but it may also help us manage our busy lives, says Monin. "We tend to like familiar things, so it makes perfect sense that over time we would use liking as a clue to familiarity."

In what he calls the "warm-glow heuristic," people consider their affinity for a specific person or place as an indicator of familiarity. As with other mental shortcuts, people resort to this heuristic when they lack enough data on which to base their decisions.

When it comes to the human brain, scientists still have a lot left to learn. One function that remains mysterious? How we're able to interpret two-dimensional pictures—like a picture of a cat on a computer screen—into objects we recognize from real life. In order to learn more about this process, researchers from the University of Washington have found a way to use brain implants and advanced software to decode brain signals at nearly the speed of thought.

The electrodes in their brains were hooked up to a software that had been programmed to detect two specific brain signal properties: "event-related potentials" that occur in immediate response to an image and "broadband spectral changes" that linger after an image has already been seen. By digitizing brain signals at a rate of 1000 times per second, the software was able to pinpoint which combination of electrode locations and signals best matched the image the patients saw in front of them.

People conserve more energy when they see their neighbors’ consumption rates.

Hypothesis 2: Behavioral economists do more interesting work than psychologists.