In a day how many hours you sleep ? If we are not sleeping instead just taking rest .what happen to body ?
106865
Most people need about 6 hours of sleep each day.  Some require more.\nWithout this, they begin to have first mental and emotional problems and then physical problems including narcolepsy.\nWhat happens to the body?  Cellular Revolt.\nOnly the human mind separates the mind from the body.\nThe single most important change in American students over the past generation which has lead to a decrease in actual learning is that many of the students today believe that they need less sleep than they really do need.\nBush would have done the country more good if he declared a mandatory Milk and Cookies time followed by naps for American students.
92437
It depends on the person.  \n\nJudging my the phrasing of your question- if you are subsisting on just 5 hours I would say it isn't enough.  (not being mean, just honest)\n\nMost adults need 8 hours or so per night.  As we age, we tend to need a little less or at least not be able to sleep that long.  Sleep recharges your mental batteries- I like to think of it as housekeeping for my brain- things always just make more sense when I have had enough. \n\nTo see how much sleep you really need, take a couple of weeks of going to bed early and not using an alarm.  After the 1st few days, see what time you are naturally waking up.  Average it, and that is how much you need. \n\nTake care of yourself!
796762
Oh ya, me too as healthcare provider, I work 12 hours a day. I'm used to sleep late at night, with wakeful hours since my boyfriend calls me from time to time from work. He work night shift, so more or less, I get 4 to 5 hours of sleep daily too except my off days, which is the happiest days of my life because I can take enough rest and sleep. I can even sleep 12 hours during my day off to catch up those days I lack sleep. We need enough sleep since lack of sleep below 6 hours a day will lead to serious heart problems as what I've read in the internet.
23571
Roughly?  4 hours after you wake up.\n\nThe reason for this is that the body goes into overdrive once awake; thus allowing your body to aclimate to the environment in which you woke up into.\n\nDuring the first 4 hours after waking up your body has used quite a bit of energy, produced quite a bit of toxins, and extended itself farther than during the rest of the day.\n\nSleeping for at least 20 minutes after your 4 hour initial stint will allow your body to be awake for the rest of the time.  It is reccomend that the sleep pattern be:\n\n4 hours, 20 minutes to 1 to 2 hours sleep; and then 6 hours and 1 hour sleep, and then normal sleep after the remainder of the hours that your awake.\n\nMind you this is totally ROUGH.  The reccomend sleep pattern is based on the individual, so if you are not sure of your choices, speak to your doctor about your normal sleep pattern.
221264
The record is something like 12 days or so by a kid. Everyone will eventually succumb to the need to sleep but when in the question. They cannot figure out why our body needs sleep and one one has ever died from a lack of it. Some theorize that we sleep because back in the day humans needed to stay in at night to avoid getting killed by nocturnal animals.
126121
Im 25, usually 7 - 8 hours does it, if ive been sleeping regularly in this pattern. However, if Ive not eaten much the day before, if my diet isnt right, my blood sugar would be low, hence the lack of energy.\nSo to answer your question. Regular sleep(7-8 hrs), good diet, no stress.\nHope ive helped your study.
170509
A typical adult will need an average of 8 hours of sleep to remain healthy. Some may be ok with 6-7 hours, some may need 9-10 hours. Most people will be between 7-9 hours. You should, as a practice of good sleep hygiene, go to bed and wake up at the same time daily. The body's circadian rhythm is naturally set to sleep at night, not only by the effects of sunlight (internal clock in near the optic chiasm an area in which the optic nerves of the eyes cross), but also by the varying core temperature of the body. The core body temp drops during the afternoon, which is why most people get a little tired after lunch and some cultures actually observe naps during that time. Then the core body temp starts plummeting after 7PM and hits the lowest around 3AM which is when you will be the most tired naturally, even if you are a night worker (which is why many shift workers suffer poor sleep). People who "claim" that 4 hours is enough for them are kidding themselves, the body simply can't recoup in that short of time and many people sleeping that little actually have a sleep disorder that keeps them from getting good sleep. Lack of good sleep and sleep deprivation can lead to a host of very bad things health wise up to and including death. Feel free to look over my previous sleep related question for the full dose of sleep disorders, diagnosis, and treatments. \n\nPersonally, I like about 7 1/2 hours of sleep; I go to bed between 9:30 and 11:00 most nights and wake up between 5:30AM and 8AM depending on weekday vs weekend.\n\nSleep tight ;)
959166
No, whether you oversleep or undersleep, it doesn't change the next days sleep. You should get different amounts of sleep at different stages in your life but as a rule of thumb, get your 6-8 hours....whether or not you over/underslept the night prior.
1076025
Normally Seven to Eight Hours r quite enough for a healthy person\nbut if u want to sleep u should/must sleep n try to relax ur self as much as u can\nIf u'll be relax u can work n do things with concentration n easily without tiredness
295982
The body needs what the body needs. If you fell to sleep you obviously needed the rest. It may take you a day or two to get back on schedule but you will be fine.
491528
When you sleep you go through different cycles, most notably, REM. This period is where you are deepest asleep and you dream.  Its the climax of your sleep cycle. When people nap, they generally don't go through their entire cycle, hence they wake up and don't feel as though they slept at all.  Generally, you need to sleep at least 3 hours to go through your entire sleep cycle, anything shorter than that, and you will feel groggy and tired when you wake up.  Instead of taking naps, try just resting and relaxing without sleeping, for 20-30 minutes.  That is generally the best thing to do when you are tired during the day.  It refreshes you, and won't wreck your sleep schedule, like naps will do.
54845
This is an interesting one which I think depends on what we THINK we need. Most folk in UK seem to generally consider we need 8 hours or thereabouts. I joined a group once which stated that if you needed more than 4 hours there was something the matter with you. This struck me as quite ridiculous on first hearing it but I gradually realised that our perception and conditioning are an enormous influence. I now KNOW I can manage quite well with 5 or 4 hours but have the capacity to sleep for 12 hours too. I am truly blessed to be able to drop off almost the minute my head touches the pillow.
487583
U need at least 4 hours sleep. Your body needs to rest so it can stay healthy. U will probably go crazy before your body will give out lol.. Sleep is important!! Stop to rest and close your eyes!
896109
There will be times in your life when you will need 12 hours and it's no big thing.  Your body tells you when you need sleep, and if it's at all possible (like not at work or driving, etc.) then listen to your body.  When you sleep your body rebuilds itself.  Just don't over-do it night after night with that much sleep.  Normal needed is about 8 hours a night.  But you can play catch-up sometimes.
1087084
it isn't until we have had 4 hours interrupt sleep, that our minds can unwind....{ we must attain REM state of sleep...to process}\n\nthe body can go for days...\n\nbut the mind can not...\nso get it at least 5...and you will feel refreshed..
732359
The interesting thing is, no scientists actually know WHY we have to sleep.  They know what causes it, and how much we need, but no one can answer that large question (about sleep) "Why?"
1009050
Typically is an over active mind... The mind did not have time to purge or dispense with all the sensory input from the day.. so the mind puts the body in action during rest.. because.. hey... if I can't sleep.. neither should the body... ha ha...