Rethinking sleep - york times, One of the first signs that the emphasis on a straight eight-hour sleep had outlived its usefulness arose in the early 1990s, thanks to a history professor.
The myth -hour sleep - bbc news, Stages of sleep. every 60-100 minutes we go through a cycle of four stages of sleep. stage 1 is a drowsy, relaxed state between being awake and sleeping.
Sleep health: 9 surprising reasons sleep, Sufficient sleep might offer a big boost for your health, mood, sex life, weight control, and more..
Does sleep affect weight loss? works - webmd, When you’re trying to lose weight, sleep may be the last thing on your mind. but, webmd explains, it has a powerful effect on your metabolism and overall efforts..
Rethinking Sleep - The New York Times
Sleep health: 9 surprising reasons sleep, Sufficient sleep offer big boost health, mood, sex life, weight control, ..
