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CLudio Villarreal

Cysticercosis - Wikipedia, the free encyclopedia - 0 views

  • Cysticercosis is a tissue infection caused by the pork tapeworm (Taenia solium).[1] People may have little or no symptoms for years, develop approximately one to two centimeter painless solid bumps in the skin and muscles, or have neurological symptoms if the brain is affected.[1][2] After months or years these bumps can become painful and swollen then resolve.[2] When cysts form in the brain it is known as neurocysticercosis.[3] In the developing world this is one of the most common cause of seizures.[2]
  • The disease is usually spread by eating foods or water that contains the tapeworm's eggs.[1] The foods most commonly believed to be the cause are uncooked vegetables.
  • Taeniasis is due to eating cysts in poorly cooked pork.
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  • Preventing the infection involves: cooking pork well, proper toilets and improved access to clean water.
  • In some cases, cysticerci may be found in the globe, extraocular muscles, and subconjunctiva. Depending on the location, they may cause visual difficulties that fluctuate with eye position, retinal edema, hemorrhage, a decreased vision or even a visual loss.[7][12]
  • Subcutaneous cysts are in the form of firm, mobile nodules, occurring mainly on the trunk and extremities.[13] Subcutaneous
  • Cysticercosis also affects pigs and cows but rarely causes symptoms as most do not live long enough.[1] The disease has occurred in humans throughout history.[5]
  • nodules are sometimes painfu
  • Cysticerci can develop in any voluntary muscle in humans.[7] Invasion of muscle by cysticerci can cause myositis, with fever, eosinophilia, and muscular pseudohypertrophy, which initiate with muscle swelling and later progress to atrophy and fibrosis.[7] In most cases, it is asymptomatic since the cysticerci die and become calcified.
  • The term neurocysticercosis is generally accepted to refer to cysts in the parenchyma of the brain. It presents with seizures and, less commonly, headaches.[8] Cysticerca in brain parenchyma are usually 5–20 mm in diameter. In subarachnoid space and fissures, lesions may be as large as 6 cm in diameter and lobulated.
    • CLudio Villarreal
       
      Cysticerosis is a disease in the brain tissue that is caused by the pork tapeworm.Some people have few symptoms and some may have many for various years.People get little bumps on the skin and muscle, or you could have neurological symptoms if the brain is affected by the worm.After the years the bumps become painful and after some time they resolve.A cluster of cells then form in the brain, and that is one of the most common cause of surgeries in the world of today.The desiase is usually spread by vegetables that contain the tapeworms eggs, although it is believed that the most common cause of disease are eating uncooked vegetables.
    • CLudio Villarreal
       
      Some of the time, a cluster of cells form in the eye, when the globe gets infected it may suffer visual loss.The bumps often occur in the trunk and the extremities.
    • CLudio Villarreal
       
      There is a vaccine for pigs to try and remove Cystisercosis. These vaccines prove to be very effective, these treatments can completely destroy cysticercosis. The cure is developing but can you imagine injecting all the pigs in the world? That would require a lot of money and it would be far grater challenge finding all the pigs in the world.
Nany Rocha

Why We're So Materialistic, Even Though It Doesn't Make Us Happy - 0 views

  • We tend to equate buying things with positive emotions. Subsequently, we think that purchasing new stuff makes us happy. It's a pretty clear correlation. In a study published in Neuron, researchers looked at what's going on in the brain when we think about buying stuff. When a product image flashed before people's eyes, an area of the brain called the nucleus accumbens lit up when a subject liked what they saw. Essentially, the brain's pleasure center kicks into gear and floods the brain with dopamine at the very thought of getting something we want. The weirdest thing about this is that just thinking about buying something is pretty much the same as actually buying it.
    • Nany Rocha
       
      We want to buy things,we make our brain think : "the more I buy things the happier I will be,LETS BUY MORE STUFF!"
  • "Thinking about acquisition provides momentary happiness boosts to materialistic people, and because they tend to think about acquisition a lot, such thoughts have the potential to provide frequent mood boosts," Richins wrote, "but the positive emotions associated with acquisition are short-lived. Although materialists still experience positive emotions after making a purchase, these emotions are less intense than before they actually acquire a product."
  • It's probably no surprise to most of us, but study after study shows that buying stuff doesn't make us happy. More importantly, we're actually unhappy when we put too much value on material objects.The big problem here isn't just that we're a little bummed out when someone else has more stuff than we do. It's that when we put a lot of emphasis on materialistic value, we're prone to depression, personality disorders, and more. One study from
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    • Nany Rocha
       
      buying stuff is supposed to make us happy but we are so materialistic and it doesn't make sense we trick our brain into thinking that the more we buy the happier well be but I now understand that happiness comes from having stuff because we trick our brain to it.
lobo5879

Five Stages Of Sleep ... Sleep Cycles Explained - 2 views

  • Stage 1This is the lightest stage of sleep, the transition phase, where you feel yourself drifting off. If you were to forget about the alarm clock and allow yourself to wake up naturally, Stage 1 sleep would be the last stage before you fully wake up. You don't spend too much time in Stage 1 sleep, typically five to 10 minutes, just enough to allow your body to slow down and your muscles to relax.
    • lobo5879
       
      The stage 1 of sleep is when you are starting to relax your muscles and start to sleep. This stages is not very long it is about 5 to ten minutes. This stage is when you wake up more quickly for example if someone touches you you will easily wake up.
  • Stage 2The second stage of sleep is still considered light sleep. Your brain activity starts to slow down, as well as your heart rate and breathing. Your body temperature falls a little and you're beginning to reach a state of total relaxation in preparation for the deeper sleep to come.
  • Stage 3Stage 3 sleep is the start of deep sleep, also known as slow wave sleep. During stage 3, your brain waves are slow "delta waves," although there may still be short bursts of faster of brain activity (also known as beta-waves). If you were to get awakened suddenly during this stage, you would be groggy and confused, and find it difficult to focus at first.
    • lobo5879
       
      this stage is when your body is finishing to relax and example is: if someone trys to wake you up you would be confused and do not know what is happening because you were already finishing to completely relax
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  • Stage 4Of the five stages of sleep, this is the one when you experience your deepest sleep of the night. Your brain only shows delta-wave (slow wave) activity, and it's difficult to wake someone up when they're in Stage 4 of sleep.
    • lobo5879
       
      this stage i when you are more hardly to be awaken. In this stage is when you start to dream and this stage is when the kids start having nightmares
  • It's during Stage 4 sleep that children are most likely to suffer from bedwetting or sleep terrors. Stages 3 and 4 can last anywhere from 5 - 15 minutes each, but the first deep sleep of the night is more likely to be an hour or so. This is the time when the body does most of it's repair work and regeneration.
  • Stage 5 This is the stage of sleep when you dream. It is also referred to as "active sleep" or REM sleep, which stands for the rapid eye movements that characterize Stage 5. During REM sleep, your blood flow, breathing, and brain activity increases. An EEG would show that your brain is about as active as it is when you're awake.Another aspect of Stage 5 sleep is that the muscles in your arms and legs will go through periods of paralysis. Scientists speculate that this may be nature's way of protecting us from acting out our dreams.The first period of REM sleep of the night usually begins about 90 minutes after you start drifting off, and lasts for about 10 minutes. As the night passes, the periods of REM sleep become longer, with the final episode lasting an hour or so.Babies may spend as much as half of the time they're asleep in the REM phase. For a healthy adult, Stage 5 occurs for about 20 to 25% of the time you are sleeping, and decreases with age.Scientists and researchers are continually learning more about the mechanics and physiological effects of sleep, and what happens during the five stages of sleep.
    • lobo5879
       
      This stage is when you are completly relaxed and many babies are many time during this tage and adults are abaut 25% of they sleep
    • lobo5879
       
      This stage is more dificult to wake up because you are alrady in deep sleep.
lobo5879

Your Eyes - 0 views

  • Your eyes are at work from the moment you wake up to the moment you close them to go to sleep. They take in tons of information about the world around you — shapes, colors, movements, and more. Then they send the information to your brain for processing so the brain knows what's going on outside of your body.
    • guzman5862
       
      Did you know That without your eyes you maybe will not feel good inside you because with your eyes you have seen all the beutifle things that you had seen in your life but they are opened for all the time exept for when you sleep and blink.
  •  
    Your eyes are at work from the moment you wake up to the moment you close them to go to sleep. They take in tons of information about the world around you - shapes, colors, movements, and more. Then they send the information to your brain for processing so the brain knows what's going on outside of your body.
CLudio Villarreal

4 Parasites That Want To Invade Your Brain | Popular Science - 0 views

    • CLudio Villarreal
       
      Paradoxically, using drugs to kill off the Loa loa larvae can be dangerous, because when large numbers of the larvae die in and around the brain, they can block capillaries and cause encephalopathy, a condition that can cause cognitive losses, memory problems, personality changes, and more.GROSS OMG!
lobo5879

Nightmares - 0 views

  • Nightmares — like most dreams — occur during the stage of sleep when the brain is very active and sorting through experiences and new information for learning and memory. The vivid images the brain is processing can seem as real as the emotions they might trigger. This part of sleep is known as the rapid eye movement or REM stage because the eyes are rapidly moving beneath closed eyelids. Nightmares tend to happen during the second half of a night's sleep, when REM intervals are longer. When kids awaken from a nightmare, its images are still fresh and can seem real. So it's natural for them to feel afraid and upset and to call out to a parent for comfort. By about preschool age, kids begin to understand that a nightmare is only a dream — and that what's happening isn't real and can't hurt them. But knowing that doesn't prevent them from feeling scared. Even older kids feel frightened when they awaken from a nightmare and may need your reassurance and comfort.
    • lobo5879
       
      we have nightmares becuse our brain was active that day and that hapens during the stage of REM (rapid eye movment) when people wake up and remember their nightmare it is normal to be scared. People start realizing  by the age of prescho lthat a nightmare is just a dream and that it will not hurt them and that it dosent mean somthing will hapen to them.
lobo5879

Nightmares - 1 views

  • While you sleep, your brain doesn't just turn off. It goes through several sleep stages, including REM (rapid eye movement) sleep. Why do they call it that? Because during this stage of sleep, your eyes move back and forth under your closed eyelids. During REM sleep, you have dreams and sometimes those dreams can be scary or upsetting. About every 90 minutes your brain switches between non-REM sleep and REM sleep. The amount of time spent in REM sleep increases with each sleep cycle through the night. The longest periods of REM sleep occur towards morning. If you wake during this REM stage, it is easier for you to remember what you were dreaming about. That's why your most vivid dreams — and nightmares — occur in the early morning hours.
    • lobo5879
       
      People have nightmares because when you are in REM (that stand for rapid eye movement) is when you are starting to have dreams and sumetimes the dreams are upseting thats why they are called nightmares
    • lobo5879
       
      and evry 90 minutes youre brain desides to go to REM then without REM
Isabel Herrera

Tongue and Taste - How it works. - 1 views

  •  The tongue is basically a muscle. This muscle helps the digestive process by doing several things: Move food to the teeth for chewing. Mix saliva into the food. Move food to the back of the mouth for swallowing.
    • Isabel Herrera
       
      The tongue is a very strong muscle that helps the digestive process by helping the food mix with the saliva, also for the food to go to the back of the mouth for swallowing, and finally it helps the food go to your teeth for you to chew easily. 
  • As mentioned above, the tongue mixes the food with saliva. As the saliva mixes it is also spreading the solutions and chemicals from the food into the grooves between the papillae on the tongue. The taste buds are located on the papillae and the taste receptors respond to the chemicals from the food. When triggered, the receptors send impulses along the nerves in the tongue up to the brain for processing.
    • Isabel Herrera
       
      The tongue helps the food mix with your saliva, but when it starts mixing it sends food chemicals to the cuts on your papillae. The taste buds are in the papillae and the taste receptors respond to the chemicals of the food. When that happens the brain gets signals of how the food tastes like.
lobo5879

What Sleep Is and Why All Kids Need It - 0 views

  • The average kid has a busy day. There's school, taking care of your pets, running around with friends, going to sports practice or other activities, and doing your homework. By the end of the day, your body needs a break. Sleep allows your body to rest for the next day. Everything that's alive needs sleep to survive. Even your dog or cat curls up for naps. Animals sleep for the same reason you do — to give your body a tiny vacation.
    • lobo5879
       
      people need to sleep because it is like youre brain rest also like when your body is tiered you sit down to relax sleeping is like that for your brain and your body
Eugenio Ferrara

How Sugar Hijacks Your Brain And Makes You Addicted - 0 views

  • When we eat foods that contain a lot of sugar, a massive amount of dopamine is released in an area of the brain called the Nucleus Accumbens.
lobo5879

How Sleep Works. Sleep for Kids - Teaching Kids the Importance of Sleep - 0 views

  • You spend the day running on the playground, learning at school, eating meals, and at night your body and brain get to rest, right? Wrong! In fact, while you are off in dreamland, your body and brain are very busy getting ready for a new day. That is why it is so important to give yourself time to sleep.
marchand5892

What Is a Vein? Definition, Types and Illustration - 0 views

    • marchand5892
       
      A Vein is like a blue tube that is inside your body to help the blood flow calmly and fast because if there weren't veins, could mess up all and it wouldn't get to your heart neither your brain so you could die, so as there is veins, blood can pass to the heart and to the brain
Isabel Herrera

What Are Taste Buds? - 0 views

  • When you have a cold or allergies, and your nose is stuffy, you might notice that your food doesn't seem to have much flavor. That's because the upper part of your nose isn't clear to receive the chemicals that trigger the olfactory receptors (that inform the brain and create the sensation of flavor).
    • Isabel Herrera
       
      When you're sick and your nose is "stuffy" you may notice that the food that you eat doesn't have much flavor. Thats because the upper part of the nose doesn't receive the chemicals that lets the brain know how the food tastes. That's why you may not find that kind of strong flavor in your food. 
guzman5862

Structure of tears influenced by what makes us cry - Telegraph - 0 views

  • Tears contain oils, antibodies and enzymes and fall into three categories; basal, which are released continuously to keep the eyes lubricated; reflex, which occur in response to irritants such as when chopping onions or when getting poked in the eye; and psychic, triggered by emotions.
lobo5879

Sleepwalking - 0 views

  • Hours after bedtime, do you find your little one wandering the hall looking dazed and confused? If you have a sleepwalking child, you're not alone. It can be unnerving to see, but sleepwalking is very common in kids and most sleepwalkers only do so occasionally and outgrow it by the teen years. Still, some simple steps can keep your young sleepwalker safe while traipsing about. Despite its name, sleepwalking (also called somnambulism) actually involves more than just walking. Sleepwalking behaviors can range from harmless (sitting up), to potentially dangerous (wandering outside), to just inappropriate (kids may even open a closet door and pee inside). No matter what kids do during sleepwalking episodes, though, it's unlikely that they'll remember ever having done it! As we sleep, our brains pass through five stages of sleep — stages 1, 2, 3, 4, and REM (rapid eye movement) sleep. Together, these stages make up a sleep cycle. One complete sleep cycle lasts about 90 to 100 minutes. So a person experiences about four or five sleep cycles during an average night's sleep. Sleepwalking most often occurs during the deeper sleep of stages 3 and 4. During these stages, it's more difficult to wake someone up, and when awakened, a person may feel groggy and disoriented for a few minutes. Kids tend to sleepwalk within an hour or two of falling asleep and may walk around for anywhere from a few seconds to 30 minutes.
    • lobo5879
       
      sleepwalking can be dangeros becacause you can go outside and do dangerous thing. sleepwalking happens when youre in stage 3 or 4 kids can sleep walk dor second to 30 minutes
guzman5862

Why do people cry? - WebMD Answers - 0 views

  • “Crying is a natural emotional response to certain feelings, usually sadness and hurt. But then people [also] cry under other circumstances and occasions," says Stephen Sideroff, PhD, a staff psychologist at Santa Monica--University of California Los Angeles & Orthopaedic Hospital."People cry in response to something of beauty. There, I use the word 'melting.' They are letting go of their guard, their defenses, tapping into a place deep inside themselves."
  • Crying is a
  • "People cry in response to something of beauty. There, I use the word 'melting.' They are letting go of their guard, their defenses, tapping into a place deep inside themselves.
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  • sadness
  • melting
    • guzman5862
       
      Crying is something created by emotions and feelings such as sadness and pain. But people also cry because they want. People cry because you reach the highest limit of your eyes like when you hit it hurt so much and the hurt goes to all of your body so you destroy your defense/guard and  let the tears pass your eye from deep inside you.
  • Crying may also have a biochemical purpose. It's believed to release stress hormones or toxins from the body, says Lauren Bylsma, a PhD student at the University of South Florida in Tampa, whose research has focused on crying.
    • guzman5862
       
      If you cry it can also have some effects that it lets out somethings like hormons toxins and stress from some part of you. And when you releze all those things you feel kind of dizzy.
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