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Quote of the day

'By far the greatest danger of Artificial Intelligence is that people conclude too early that they understand it'

 

Eliezer Yudkowsky

Bad sleep dramatically alters body

RATE THIS! +10
Posted in Science on 26th Feb, 2013 10:31 PM by AlexMuller

The activity of hundreds of genes was altered when people's sleep was cut to less than six hours a day for a week. Writing in the journal PNAS, the researchers said the results helped explain how poor sleep damaged health.

 

Heart disease, diabetes, obesity and poor brain function have all been linked to substandard sleep. What missing hours in bed actually does to alter health, however, is unknown.

 

So researchers at the University of Surrey analysed the blood of 26 people after they had had plenty of sleep, up to 10 hours each night for a week, and compared the results with samples after a week of fewer than six hours a night.

 

More than 700 genes were altered by the shift. Each contains the instructions for building a protein, so those that became more active produced more proteins - changing the chemistry of the body.

 

Meanwhile the natural body clock was disturbed - some genes naturally wax and wane in activity through the day, but this effect was dulled by sleep deprivation. Prof Colin Smith, from the University of Surrey, told the BBC: "There was quite a dramatic change in activity in many different kinds of genes."

 

Areas such as the immune system and how the body responds to damage and stress were affected. Prof Smith added: "Clearly sleep is critical to rebuilding the body and maintaining a functional state, all kinds of damage appear to occur - hinting at what may lead to ill health.

 

"If we can't actually replenish and replace new cells, then that's going to lead to degenerative diseases."



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Comments

Author: Guest
Posted: 2013-03-22
+0
kapirajaæ§?ワッãƒ?プードウドムも凄いかもしれませんが kapirajaæ§?も そこやワッãƒ?パイロンウアなどに 公共交通機関で行く度胸 凄いですã‚? 私なんか 公共 交通機関を使っていった地獄寺なんて おそらく パンガー県のアレだけです バスターミナルから徒歩で é ã‹ã£ãŸ モãƒ?サイ ãƒ?ゥクãƒ?ゥク等のチャーターならありますけどね 貴ブログ もちろんå­?ã?ています 良い機会なので 当ブログにもリンク貼っておきました Reply
Author: Guest
Posted: 2013-10-25
+0
t152Pp Great article post.Really looking forward to read more. Reply


 

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