Five hours' sleep is enough, study finds - Polidicks

[QUOTE][B]Not getting seven or eight hours of sleep a night won't kill you, new research shows. [/B] Earlier this year [URL="http://www.telegraph.co.uk/health/healthnews/7920197/Seven-hours-sleep-is-the-recipe-for-health.html"]a large-scale study indicated[/URL] that getting less than seven hours' sleep was associated with an increased risk of heart disease. Another concluded that people who sleep less than six hours a night are more likely to die before the age of 65. But a new report, which followed almost 450 middle-aged and elderly women over a 14-year period, found that those who slept between five and six-and-half hours were most likely to still be alive. It differed from other studies in that it measured sleep using wrist activity monitors, rather than asking people about their sleep habits. Daniel Kripke, professor emeritus of psychiatry at the University of California San Diego School of Medicine, said: "The surprise was that when sleep was measured objectively, the best survival was observed among women who slept five to 6.5 hours. "Women who slept less than five hours a night or more than 6.5 hours were less likely to be alive at the 14-year follow-up." The findings are published online in the journal [I]Sleep Medicine[/I]. Prof Kripke said the study should allay some people's fears that they were not getting enough sleep. "This means that women who sleep as little as five to six-and-a-half hours have nothing to worry about since that amount of sleep is evidently consistent with excellent survival," he said. He added that getting between five and six-and-a-half hours sleep was the average for the sample of San Diego women in the study. In March, a British study of 3,000 people found the average Briton sleeps for six hours a night. The question of why sleep is essential has vexed researchers for decades. It is now known that it helps the body to maintain itself in numerous ways, like enabling cells to repair. Sleep deprivation is known to raise blood pressure and reduce glucose tolerance, which can both increase the risk of artery damage. Those who do not sleep enough have also been shown to eat more and be less attractive than people who do. [/QUOTE] For a minute I shat my self at the heart disease and before 65. Then I relaxed. [url]http://www.telegraph.co.uk/health/healthnews/8036861/Five-hours-sleep-is-enough-study-finds.html[/url] Now go to bed

I am for 7, I used to aim for 5 when my pc had games.

finally somebody gets it

If I keep a consistent schedule of 5 hours of sleep, it doesn't affect me. However if I suddenly go from 8 hours of sleep to 5 hours, I feel tired the next day.

okay that's great but doesn't anybody else [B]like[/B] sleeping??

[QUOTE=Kalibos;25207434]okay that's great but doesn't anybody else [B]like[/B] sleeping??[/QUOTE] I like sleeping, but only after staying up for a little while. After having a long, tiring day, there's nothing better than curling up in a warm, comfy, bed.

I cant believe this. I get about 8 hours and a i feel so bad.

[QUOTE=Kalibos;25207434]okay that's great but doesn't anybody else [B]like[/B] sleeping??[/QUOTE] Only if I'm feeling really lazy or after a long day.

But the study only looked at older women, right? It didn't really study the influence sleep deprivation has on teenagers.

I found this out at recruit training camp, after getting up at 6am every morning after 6 months I thought i would die, but i actually felt normal.

If I don't sleep more than 7 hours a day my brain doesn't work after waking up.

I'll happily sleep for like 10 or 11 hours before naturally waking up but then it's harder to get to sleep the next night because I'm not tired enough, so I usually get about 8 hours.

anybody under 21 should sleep for more than eight hours

i think ill shift to five hours of sleep then

Actually if I sleep in I end up getting sleep paralysis, something I try to avoid. The horror of it actually ruins my day entirely.

Well that's real nice, does that change the fact that I still have to get up at 5:30 in the morning for school? No.

I sleep for 8 hours and wake up tired. I sleep for about 6/7 hours and wake up fine. I think it is mostly to do with making up when you are dreaming, the REM stage of sleep where your brain does not like to be wrenched out of by the sound of an alarm clock.

Anyone in their teenager years can get about 6-8 hours and be fine. But above teenager, you should get around 8-12 really sometimes.

[QUOTE=Kalibos;25207434]okay that's great but doesn't anybody else [B]like[/B] sleeping??[/QUOTE] I wish I didn't have to sleep. Because I never would

[QUOTE=R3mix;25207925]Anyone in their teenager years can get about 6-8 hours and be fine. But above teenager, you should get around 8-12 really sometimes.[/QUOTE] what

Anything less than 8 hours and I feel tired. Which is why I'm consistently tired with exception of holidays and weekends.

Have they been studying me for the past month?

I usually get 5 or 6 hours. Does me no harm. I feel better after that than I do after, say 10+. I felt awful when I went to the US as I slept for 12 hours wehn we got there, but felt great when I came back to Scotland when I slept for 5.

usually sleep for around 8 1/2 to 9 on a weekday. Still feel tired as hell

5/6 hours here too. I value my free time too much to waste any and I have no problems waking up in the morning. Might sleep an hour or two more at some point in the day though. A lot of weekends I can sleep 12h+ though.

I feel extremely tired if I get any less or more than 5 hours of sleep, to a point that I feel like i can barely function. This could probably be from the 3 hours of sleep I got over a 2 year time period :v:

I feel tired when I wake up anyway so..

[QUOTE=thisispain;25207791]anybody under 21 should sleep for more than eight hours[/QUOTE] if only schools shared this view

My parents thought I was batshit when I bought a $700 futon mattress, but then I told them, "Look, I am going to be spending a third of my 24hr day sleeping, and at some point I will be watching music or studying on my futon, why would I want a cheap ass mattress for something I am going to spend 1/3 of my life on? But thanks to this report, I feel like a tosser.

There is a major flaw with this article that will lead people to misinterpret it. The study was done on middle age women, not growing teenagers, children and young adults, who need sleep the most. Teenagers still need 7-9 hours of sleep a night.