Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The human brain doesn't stop developing until about 25 years old.
102
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
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
One human hair can support 3 ounces.
191
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
There are about 1,400 different species of bacteria in your belly button.
10
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127