The number of hours needed to sleep is a matter of "circadian rhythm," or the biological clock function which regulates our sleep-wake cycles.
stason.org/articles/wellbeing/sleep/how_many_hours_do_y... stason.org/articles/wellbeing/sleep/how_many_hours_do_you_need_to_sleep.html
Most teens need about 8½ to more than 9 hours of sleep each night. The right amount of sleep is essential for anyone who wants to do well on a test or play sports without tripping over their feet. Unfortunately, though, many teens don't get enough sleep.
kidshealth.org/teen/your_body/take_care/how_much_sleep.... kidshealth.org/teen/your_body/take_care/how_much_sleep.html
Stages 3 & 4 (Deep Sleep) - You’re difficult to awaken, and if you are awakened, you do not adjust immediately and often feel groggy and disoriented for several minutes. Deep sleep allows the brain to go on a little vacation needed to restore the energy we expend during our waking hours.
helpguide.org/life/sleeping.htm helpguide.org/life/sleeping.htm
Sleep Disorders Blog with Brandon Peters, M.D. ... This can be a useful measure to establish a starting point in those with sleep disorders and also to monitor a response to treatment over time. ... MSLT is a protocol that is often used to test whether an individual has an excessive drive to sleep. This is determined through...
sleepdisorders.about.com/health/sleepdisorders/mbody.ht... sleepdisorders.about.com/health/sleepdisorders/mbody.htm
People living longest actually tend to sleep 6.5 to 7.5 hours per night according to a new report and interview with Daniel Kripke co-director of research of the Scripps Clinic Sleep Center in La Jolla, ... Seven hours sleep a night has the least correlation with diabetes. ... The Floor Needed Mopping...
dotcommonsense.blog-city.com/eight_hours_of_sleep_at_ni... dotcommonsense.blog-city.com/eight_hours_of_sleep_at_night_not_needed__misconception_may.htm
Problem Sleepiness Has Serious Consequences; Sleepiness due to chronic lack of adequate sleep is a big problem in the United States and affects many children as well as adults. Children and even adolescents need at least 9 hours of sleep each night to do their best.
www.nhlbi.nih.gov/health/public/sleep/starslp/parents/w... www.nhlbi.nih.gov/health/public/sleep/starslp/parents/whysleep.htm
Hours needed of sleep you must meet ... Everyone has varying sleep demands, but the recommended hours needed of sleep for each person to function effectively are eight hours. In this harried times where rushing is the name of the game and everybody tries to squeeze as many activities as they can in one day,
www.factsaboutinsomnia.org/x-hours-needed-of-sleep.html www.factsaboutinsomnia.org/x-hours-needed-of-sleep.html
It's wonderful to be able to overcome serious problems with Insomnia and finally get the precious sleep I needed. Waking up in the morning was enjoyable because I felt refreshed and fully energized to face life's challenges. ... Hours needed of Sleep...
www.factsaboutinsomnia.org/
Usually I sleep 5-6 hours a night. I wish I could get by on 2 or 3; I would get a lot more done ... Even though I was probably on the verge of overtraining the entire time, I noticed that I needed less sleep and I felt more energy than usual. I maintained my strength and lean body mass, and my body fat decreased every week.
www.howtobefit.com/hours-of-sleep.htm www.howtobefit.com/hours-of-sleep.htm
A Good; Day's Sleep; Even night-shift workers can get their needed sleep ... A three-hour nap before work is ideal if you didn’t sleep a full eight hours after work. Even a 10-minute nap can clear your brain and refresh you before work or the drive home. But keep short naps to 20 minutes.
www.nurseweek.com/features/00-01/sleep.html www.nurseweek.com/features/00-01/sleep.html