There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Every human spent about half an hour as a single cell.
144
You can't tickle yourself.
29
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62