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Q.

What sleeps actually when we sleep?

Tags: sleeps
Asked by joyesh chakraborty, 18 Jan '08 01:45 pm
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Answers (5)

 
1.

Scientists still don't know precisely what sleep is for.
Is it to refresh the body? Not really. Researchers have yet to find any vital biological function that sleep restores. As far as anyone can tell, muscles don't need sleep, just intermittent periods of relaxation. The rest of the body chugs along seemingly unaware of whether the brain is asleep or awake.

Is it to refresh the mind? That's closer to the mark. The brain benefits from a good night's sleep. But there is no agreement among sleep researchers about what form that benefit takes. One theory is that sleep allows the brain to review and consolidate all the streams of information it gathered while awake. Another suggests that we sleep in order to allow the brain to stock up on fuel and flush out wastes. A third, which has been gaining currency, is that sleep operates in some mysterious way to help you master various skills, such as how to play the piano and ride a bike.

Most of the new science of sleep has emerged qu ...more
Answered by GOPI KUMAR, 18 Jan '08 01:49 pm

 
  
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2.

Mystery
Answered by anil garg, 18 Jul '09 11:16 pm

 
  
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3.

Our brain takes a much needed rest
Answered by Omega, 18 Jan '08 05:20 pm

 
  
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4.

Brain
Answered by nsp, 18 Jan '08 01:46 pm

 
  
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5.

Brain
Answered by rida, 18 Jan '08 01:45 pm

 
  
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