Why do you sleep? Okay we know, it sounds like a pretty dumb question with a fairly obvious answer, but the truth is that scientists have not yet been able to fully figure it out. In fact, it probably should have been on our list of the 25 biggest mysteries of history. Over the last several decades though, using modern technology, researchers have been able to measure brain waves and find out a little bit about what is going on in our heads at night. It’s thanks to these trailblazers that we can bring you 25 Crazy Facts About Sleep.
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With an average lifespan of 6 - 8 years, mattresses have plenty of time to gather some nasty stuff. One study even linked them to Sudden Infant Death Syndrome.
Another study showed that people getting only 6 to 7 hours of sleep every night have a longer life expectancy than those who sleep 8 hours.
Both whales and dolphins only fall half asleep. Their brain hemispheres take turns so they can continue surfacing to breathe.
The world record for not sleeping was set by 17-year-old Randy Gardner in 1964 when he was awake for 264 hours and 12 minutes. He set this record intentionally and without any stimulants.
Do you suffer from aches and pains? According to one study, your pain tolerance will drop with sleep deprivation. Consider this another reason to rest when you're recovering from an injury.