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Jonathan Miller

Sleeping less than six hours a night skews activity of hundreds of genes | Science | gu... - 0 views

  • Getting too little sleep for several nights in a row disrupts hundreds of genes that are essential for good health, including those linked to stress and fighting disease.
  • Tests on people who slept less than six hours a night for a week revealed substantial changes in the activity of genes that govern the immune system, metabolism, sleep and wake cycles, and the body's response to stress, suggesting that poor sleep could have a broad impact on long-term wellbeing.
  • Among the sleep-deprived, the activity of 444 genes was suppressed, while 267 genes were more active than in those who slept for longer.
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    Sample, Ian. "Sleeping Less than Six Hours a Night Skews Activity of Hundreds of Genes." The Guardian. Guardian News and Media, 25 Feb. 2013. Web. 27 Feb. 2013. . This article, from The Guardian, talks about an English study on sleep patterns and genes. The study found that the genes of people who sleep less than six hours per night become suppressed and much less functional than those of people who sleep for healthier periods of time (i.e. 8 hours or more, typically). These changes can affect more than 700 genes that govern the human body's immune system, metabolism, sleep and wake cycles, and responses to stress. 
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    This is very relevant to not just the Health course, but to people's everyday lives as well. As high school students, many of us are too preoccupied with doing schoolwork or procrastinating to go to sleep on time, which leads to sleep deprivation. We all know that sleep deprivation will also deprive one of his or her ability to focus properly, but this article provides a very solid scientific explanation as to why we should be sleeping right. I think that this kind of stuff is fascinating -- the whole idea of digging deep into how the human body works is just amazing, especially since we're always learning new things.
Eri Fukushima

Relax! You'll Be More Productive - NYTimes.com - 1 views

  • “More, bigger, faster.” This, the ethos of the market economies since the Industrial Revolution, is grounded in a mythical and misguided assumption — that our resources are infinite.
  • Spending more hours at work often leads to less time for sleep and insufficient sleep takes a substantial toll on performance
  • during the day we move from a state of alertness progressively into physiological fatigue approximately every 90 minutes
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    Citation Schwartz, Tony. "Relax! You'll Be More Productive." The New York Times. The New York Times, 10 Feb. 2013. Web. 13 Feb. 2013. Summary So as people of a world in which the 9 to 5 job is a dream for most, we probably all know that more time worked means more work done, which means that all that time was spent more productively than if we had worked less... Right? According to a study of around 400 employees, this may not be true. More work and less sleep increases chances of burning out on-the-job. Harvard conducted a similar study, but they researched what sleep deprivation was costing us. The amount? $63.2 billion a year. Cheri D. Mah, who is a researcher for Stanford, found that 10 or more hours of sleep for basketball players increase performance. Similar tests were performed on those doing different jobs - night shift workers, accountants and athletes. All did better, especially with longer hours to sleep. Vacations did wonders, too. The reason for this is that humans are not build to expend energy continuously. We need breaks, and especially sleep. Through all of these studies, researchers have found that 90 minutes of consecutive work and then a break is the most ideal for maximization of productivity.
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    I thought this was really useful information to know, because a lot of people that I know like to keep working even though they're tired or sleep deprived. Well, knowing that their performance overall is affected by sleep deprivation to the point where the quality drops dramatically, maybe would encourage them to take the time to rest a little bit and refresh themselves. It also shows how vital sleep is to our overall health.
hanna scherer

Does Your Diet Influence How Well You Sleep? | TIME.com - 0 views

  • Research suggests sleep deprivation interferes with hunger and satiety hormones crucial to regulating appetite. But the study authors suggest that the relationship works both ways, and that diet can alter sleep as well.
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    Sifferlin, Alexandra. "Does Your Diet Influence How Well You Sleep?" Time. Time, 7 Feb. 2013. Web. 27 Feb. 2013. http://healthland.time.com/2013/02/07/does-your-diet-influence-how-well-you-sleep/. Sleeping and eating right are key to good health, and now, a study done at the University of Pennsylvania shows that a good diet is key to good sleeping habits. Data from the NHANES of 2007-2008 shows that short sleepers (5-6 hours) consumed the most calories, followed by normal sleeper (7-8 hours), and then very short sleepers (>5 hours), and finally long sleepers (9+ hours), who consumed the least amount of calories. The normal sleepers also had the most variety in their diets with very short sleepers having the least. The very short and short sleepers also didn't get as much of certain vitamins or water in their diets.
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