Only 2% of the Earth's population are natural redheads.
13
Redheads require up to 20% more anesthesia to be knocked out.
112
One human hair can support 3 ounces.
191
Intelligent people have more zinc and copper in their hair.
233
Human hair and fingernails continue to grow after death.
7
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
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130