Eye Opening Facts about Sleep

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1. Humans spend a third of their life sleeping (25 years or more).


2. Humans can survive longer without food than they can without sleep.


3. During the first two years of a baby's life, new parents will miss six months of sleep on average.


4. Giraffes sleep only 1.9 hours a day in five- to 10-minute sessions. Koalas, however, are the longest-sleeping mammals, sleeping up to 22 hours a day.


5. Only one half of a dolphin's brain goes to sleep at a time. Dolphins are capable of what is known as unihemispheric sleep, in which one hemisphere of the brain goes into a deep sleep while the other hemisphere remains awake. This allows dolphins to sleep under water without drowning. Dolphins spend approximately one third of their lives asleep.


6. Heart disease, diabetes, and obesity all have been linked to chronic sleep loss.


7. There are at least 84 identified sleep/wake disorders.


8. During the night, we move back and forth between quiet sleep and deeper, active sleep. We go through four or five 90- to 110-minute rounds of this basic quiet/active sleep cycle each night.


9. Ken Parks, who murdered his mother-in-law by bludgeoning her with a tire iron and attempted to murder his father-in-law by strangulation, offered sleepwalking as a defense during his trial. He was acquitted.


10. During sleep, the brain "consolidates" memories and skills, meaning that the brain strengthens, reorganizes, and restructures memories during sleep.


REFERENCE: http://facts.randomhistory.com/facts-about-sleep.html

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