The chemicals indole and skatole, which help to account for the particular smell of human feces, are used as ingredients in perfume!
-3
Every hour one billion cells in the body must be replaced.
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
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
Your stomach produces a new layer of mucus every two weeks so that it doesn't digest itself.
160
If you stop working out, it takes twice as long to lose strength than it took to gain it.
16


