Sleep is absolutely essential for every human being. Despite scientists still not figuring out the process entirely, we still know a lot about this daily activity. Every mammal, bird and most reptiles, amphibians and fish require sleep to function. Here are some cool stuffs you probably never knew about sleep.

What goes on while you sleep:

Your brain recharges.
Your cells repair themselves.
Your body released important hormones.

Need for sleep depending upon age
Babies - 16 hours
3 year to 18 yearl old – 10 hours
19year old to 55 year old – 8 hours
over 55 year old – 6 hours.

Fact: Men have dreams about other men 70% of the time. But women dream about women and men equally.

Fact: Parasomnia is atype of sleep disorder that makes you do unnatural movements despite being asleep.

Crimes committed on parasomnia include:
sleep driving.
writing bad checks
child molesting

Fact: 12% of people dream only in black and white.

Fact: Dreaming is normal. People who do not dream regularly have personality disorders.

Fact: Sleep positions may determine your personality.

The most common Sleep positions:

Fact: 1 in 4 married couples sleep in seperate beds.

Fact: British soldiers were the 1st to develop a method in staying up 36 hours without sleep.
When fatigued, they put on specialvisors that emulated the brightness on a sunrise and it woke them up.

Fact: When dolphins sleep, only half their brains shuts down. The other half stays awake to help with breathing cycles.

Fact: Blind people can still see images in their dreams. But in the case of born blind people, they experiance dreams involving, emotion, sound, smell, & touch instead of sight.

Fact: You will die from sleep deprevation, before food deprevation. It takes 2 or more weeks to starve. But 10 days without sleep can kill lots of people.

Fact: Within 5 mins of waking up, 50% of your dream is forgotten. Within 10 mins 90% is gone.

Fact: 1 out of 50 teenagers still wet their beds.
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