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
There are about 255 babies born worldwide every minute.
46
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
Enamel is hardest substance in the human body.
61
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
30
The world's shortest man measures only 21.5 inches.
73