Why hould you sleep?

@andyvish (901)
May 9, 2007 10:02am CST
Is this a question for debate? I think so. Everybody knows that sleep is necessary for body to function well. People also know that if you dont have enough sleep, you may have several diseases. But how does body mechanism maintains the sleep clock?
1 response
• Romania
9 May 07
i read a book named how to sleep less and have more energy. the sleep clock is affected by the light in a room .