7 facts about sleep

1.The Romans even had a waterbed. They would lay in a cradle of warm water that would make them sleepy. Then they would be lifted onto a cradle with a mattress and gently rocked to sleep.
2.Naps improve memoryDaytime naps improve memory! It also helps you remember important facts.
Naps also cut risk of heart disease.

3.Sleepy is just like drunk!If you lose two hours of sleep, you can impair your performance equal to a .05 blood-alcohol level

4.It’s impossible to tell if someone is really awake without close medical supervision. People can take cat naps with their eyes open without even being aware of it.
5.You can see future in your sleep. A study showed that 42% of people felt they had had a dream about something that later came true.
6.More sleep less food. Lack of sleep can raise the sensation of hunger by 25 percent. Sleep more and you can eat more or burn more calories.
7. Sleep helps to ceep the information. Sleeping directly after learning something new will improve your ability to remember it effectively.

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