Sleep

What is sleep? How does this thing gets indispensable in your life?
According to definition Sleep is a state in which our body cells undergo repair from the wear and tear of day-to-day activities.Hence sleep is necessary in order to be healthy.
According to scientists lack of sleep may cause serious brain damages,make you obese or even cause a heart-attack.
Also during sleep the nerve-receptors rest and hence if we don't sleep enough we may feel giddy and we may have problems doing simple tasks.


But sleep is not just that,during sleep we also dream and scientists have shown that everybody dreams so dreams must have a special significance.Dreams enable us to set our priorities.This gets seriously affected if we don't have adequate sleep.It has been found that college students who sleep more have higher grades than those who sleep less.

Newborn babies have it made -- they sleep 16 to 18 hours every day. An adult needs about 8 hours a day of sleep.

Militaries of several countries, including the US, the UK, Pakistan and France, have been exploring the use of a drug called modafinil (sold as the brand Provigil in the United States), which has prevented negative effects of sleep deprivation. Although modafinil is not a typical stimulant, it eliminates fatigue, promotes wakefulness, and improves alertness; it was initially developed for sufferers of narcolepsy.

But beware of over-sleeping.Those who average more than nine hours of sleep per night are twice as likely to develop Parkinson's disease as those who get six hours or less [source: The New York Times].
So sleep for the right amount of time to be healthy.