There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
The average sperm cell swims at 8 inches per hour.
4
All 13 minerals necessary for human life can be found in alcohol beverages.
282
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Your fingernails grow faster in summer.
744
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198