The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Your body is creating and killing about 2.4 million red blood cells per second.
17
One human hair can support 3 ounces.
191
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
The human brain uses approximately as much energy as a 10 watt light bulb.
120