There's 100 trillion good bacteria living in your body.
17
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
22
Only 1 person in 2 billion will live to be 116.
49
Smokers get ten times more wrinkles than non-smokers.
171
In Nepal, cow dung is used for medicinal purposes.
19
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
Your stomach produces a new layer of mucus every two weeks so that it doesn't digest itself.
160
Redheads require up to 20% more anesthesia to be knocked out.
112