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You need sleep because the longer you stay up, the less you will be able to concentrate. And if you go to bed late then you are likely to oversleep in the morning and you wont be able to concentrate. You need to know what your sleep time is because your doing it for your own health.

When they say beauty sleep they are true because if you dont sleep then you get rings and bags underneath your eyes and that can make your face look a bit worrying to others.

Sleep loss can affect the mood that you are in.

However not everyone has the same sleep requirements. Some need more than others. 8 hours is considered an average.

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Q: Why do you need 8 hours of sleep?
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Continue Learning about Gerontology

How many hours of sleep does a 68 year old need?

8


How many hours of sleep should a 45 year old be getting?

8 hours


If I go to sleep late say 2 am everyday but still get 8 hrs of sleep is it still bad for me What hormone is typically secreted at night that is bad for you?

it's recommended that you do have eight hours of sleep but you need to have at least a nice break from exact amount of hours of sleep everyday or your body will only function in the hours you use because if you goto sleep at 2am everyday after a while your body will run exactly between those hours so you can't sleep earlyer


How many hours sleep does a 50 year old need?

The adult human body only needs 4 hours of continuous sleep to fully rejuvenate ... A child need much more as much as 8 - 10 hours of sleep .. All people differ, some require more sleep than others. There is no set minimum or maximum. The human body is largely self regulating in this respect. When you are tired you sleep more. I have added a link supporting my previous answer that 7-8 hours is the accepted norm for the 'average' adult.


What is the number of hours of sleep required per night?

7 is the optimal amount of sleep you can get in one night. Try not to sleep under 5 hours and over 7 hours as it is actually unhealthy to sleep 8 hours a night. Sleeping only 5 hours is less harmful than sleeping 8 hours according to a study done by U of California and the American Cancer Society. So try to get around 7, but don't go too far over, less is better than more (to a point.)

Related questions

How many hours of sleep do you need to grow taller?

You need 8 hours of sleep, and you have to be in deep sleep at 1-4 a.m.


How long do you need sleep?

About 8 hours


Why do you need more sleep if you are a teen?

teens need 2 sleep 8-10 hours an sleeps 6-8 hours. u do the math!


Why do kids need 10 hours of sleep besides 8?

Kids need 10 hours of sleep besides 8 because they are still growing


How many hours should the person sleep?

Around 8 hours or more but you can sleep less if you wan to or need to so about 8 hours.


How much sleep do you need a night?

between 5-7 hours of sleep. Children need at least 7-8 hours of sleep


How many hours of sleep do teenages need?

Its compulsary for a teen ager to sleep 8 hours..


How much sleep does a boy need?

at least 8 hours of sleep


How many hours sleep does an eight year old need?

about 8 to 10 hours of sleep


How many hours of sleep does a cricketer need?

they're human aren't they? so wouldn't the answer be how many hours of sleep does a human need? and the answer is about 8 hours.


How much hours' sleep or How many hours' sleep do you need a night?

Ages 13-18 need about 8 to 10 hours of sleep. Adults between 25 and 64 years of age need an average of 7 to 9 hours of sleep per night. Adults 65 and older need 7 to 8 hours per night.


What is the proper medical answer for how much sleep an adult need?

an adult need sleep of maximum 8 hours.