#1
About 12% of all people dream in black and white.
#2
People that are born blind don’t dream in images, but in things like emotion, sound and smell.
#3
Some deaf people use sign language in their sleep.
#4
On average, people need 7 to 9 hours of sleep every day to function properly.
#5
If you don’t get enough sleep at night, it’s likely that you’ll want to eat more during the day. Due to a decrease of the hormone that regulates your appetite.
#6
Caffeine is the world’s most popular drug when it comes to giving you that little kick to stay awake. Think about coffee, tea, chocolate and some sodas.
#7
We spend about one third of our lives asleep. You’d better make sure to have a comfy bed.
#8
Some people commit crimes in their sleep, because of parasomnia. Meaning all the abnormal things that can happen to people while they sleep, like sleepwalking.
#9
About 15% of all people are sleepwalkers. Waking them up isn’t as dangerous as they say, but there is no doubt that it’s not going to be fun for the sleepwalker.
#10
About 25% of married couples sleep in separate beds.
#11
Some scientists say that sleep deprivation will kill you more quickly than food deprivation.
#12
Within 5 minutes of waking up, you already forget half of your dreams.
#13
In general, it takes people 10 to 15 minutes to fall asleep. If it takes you less than 5 minutes, you might be overtired and you should get more rest.
#14
Although you’d expect it, fear isn’t the main emotion in nightmares. Researchers found it is more often a feeling of sadness, guilt and confusion.
#15
REM sleep (Rapid Eye Movement sleep) usually begins after about 90 minutes after falling asleep. It occurs in bursts, and in total lasts about 2 hours a night.
#16
Researchers still don’t know if animals dream, like we do. But some animals have sleep cycles similar to humans.
#17
Elephants sleep standing up during non-REM sleep, but lie down for REM sleep.
#18
Cats are famous for their long naps. Two thirds of a cat’s life is spent asleep.
#19
A giraffe only needs about 2 hours of sleep a day. Whereas brown bat needs about 20 hours a day.
#20
Dolphins sleep with one eye open and with half their brain wide awake. In 24 hours, each half of the brain gets about 4 hours of sleep.
#21
Humans are the only mammals that willingly delay sleep.
#22
Going to bed drunk will make you fall asleep quicker. But you won’t get enough rest, as you’ll sleep lighter than normal.
#23
If it’s too hot in your bedroom, you’ll have more trouble to sleep well. As our body temperature has to decrease slightly to fall asleep.
#24
Snoring only occurs in non-REM sleep.
#25
The purpose of dreaming is still a mystery. There are theories though. Some say we do it to sort thoughts and store experiences. But hey, we all know it can be a lot of fun.
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