One human hair can support 3 ounces.
191
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
There are about 1,400 different species of bacteria in your belly button.
10
Your thumb is about the same size as your nose.
124
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
