Why do people need to sleep?
Food, sleep and sexual urge are basic instincts built into the genes of all living beings. Wakeful time reduces life span. Good amount of sleep increases life span. Not Enough Sleep Linked To Higher Diabetes Type 2 Risk http://www.medicalnewstoday.com/articles… Too Much or Too Little Sleep Increases Risk of Mortality Sleep anything but seven to eight hours a night and you may greatly increase your risk of death, shows a Finnish study of 21,268 twins published in yesterday’s issue of the journal SLEEP. http://www.findcounseling.com/help/news/… http://cr.yp.to/postpropter/sleep.txt We observed an inverse relationship. Mammals with short lifespan sleep more.