13 Scientific Facts We Never Knew About Sleep

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13 Scientific Facts We Never Knew About Sleep

You might think that adults who sleep with a soft furry toy wouldn’t be too numerous … but if you did, you’d be wrong. Here’s the full story, plus 12 others:

You might be suffering. from obstructive sleep apnea without even knowing it. 85% of people with apnea are undiagnosed, and it can have pretty serious consequences including heart disease, hypertension, and depression. NOW YOU KNOW CRACKED.COM

Source: NIH

Giraffes in the wild only spend a total of 5-30 minutes per day in deep sleep. One theory says this is because they're so vulnerable to predators - they need all the alertness they can get to protect themselves. NOW YOU KNOW CRACKED.COM

Source: BBC

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