A man's beard grows fastest when he anticipates sex.
239
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
Blonde hair is not exclusive to Europeans. Melanesians of the south Pacific evolved a different gene for blonde hair.
7
Only 2% of the worlds population is blonde.
15
One human hair can support 3 ounces.
191
Only 2% of the Earth's population are natural redheads.
13