Why do we need to sleep?!
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Answers:
To get more energy. If you don't you will get in Sleep debt. Also your brain, reflexes, and body would not do as good. When you are in sleep debt you have to sleep more to get back on track. Also the recommended hours of sleep are 8 to 9 hours.
For kids they need 10 to 11 hours of sleep.
Also Dr. Know (from TV) did tests on a lab rat (Not a rat but a human) by forcing them to only get 4 hours of sleep each night and did a test a found out their reflexes were slowing, their memory test wasn't as good, and when they recovered (pay their sleep debt) they did better.
Other Answers:
why dont you find out yourself
for R&R
To get rest and go another day.
so your body can recharge it needs sleep like it needs food and water it fuels the body
yeah
To Recuperate after getting drunk
So you don't die while driving a car because u were dumb enough not to sleep, therefore, you let go of the wheel , fall asleep, and crash into another car
;-)
Source(s):
My Brain
hey Smartchick
what the hell is R&R??
To get more energy but it feels like you don't get any energy!
nobody really knows. just theories.
You must be retarded if you ask that Question!!
Sleep gives your body a rest and allows it to prepare for the next day. It's like giving your body a mini-vacation. Sleep also gives your brain a chance to sort things out. Scientists aren't exactly sure what kinds of organizing your brain does while you sleep, but they think that sleep may be the time when the brain sorts and stores information, replaces chemicals, and solves problems.
The amount of sleep a person needs depends a lot on his or her age. Babies sleep a lot - about 14 to 15 hours a day! But many older people only need about 7 or 8 hours of sleep each night. Most kids between the ages of 5 and 12 years old are somewhere in between, needing 10 to 11 hours of sleep. Some kids might need more and some need less. It depends on the kid.
Skipping one night's sleep makes a person cranky and clumsy. After missing two nights of sleep, a person will have problems thinking and doing things; his or her brain and body can't do their normal tasks nearly as well. After five nights without sleep, a person will hallucinate (this means seeing things that aren't actually there). Eventually, it becomes impossible for the brain to give its directions to the rest of the body without sleep - the brain needs to spend time in bed and catch its ZZZs!
Sleep assists the body in regeneration. Without sleep, even walking would seem difficult.
so u don't act like a b****!
if you dont you will be tired
You will die if you do not sleep.
SO YOU CAN FUNCTION THE NEXT DAY . go 2 or 3 ( the least ) without sleep , and then you can answer the question better yourself .
I believe it is for your brain to sort out the days filing.
There have been studies that show physical fatigue goes away long before the need for sleep is got rid of.
Try not sleeping for a night or two and see for yourself.
you recharge you! you will get very very sick if you do not get enought sleep
sorry but this is stupid.you need to rest your body and mind.your human not a machine.ok
During the day our body uses a lot of energy we then get tired and our body has this liquid that makes us sleep as we grow older it reduces thats why a baby sleeps more than a 10 year old i hope it helped
so that are mind and body can rest and prepare for another day
you need to relax
tom maintain out required energy anf for our body to heel itself after a longs day of work say you get a cut it heels as you sleep and if you didnt it would take 2-4 days to healt b/c it has a lack of energy gained by sleep.
To rejuvenate your body
The long post above was from a google search by the way:
Source(s):
http://kidshealth.org/kid/talk/qa/sleep.html
For our bodys to repair themselves so that we remain healthy. Remember this. Good health means a good life. Good luck and much wisdom.
Your brain and nervious system need the down time of inactivity to fully feed (recieve blood-carried oxygen and food) and despense waste. During your waking hours the brain still does this but at a much slower and smaller capacity.
When you sleep several things are taking place in your unconcious body, one of which is healing.
More energy.
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