There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
The human body contains over a billion miles of DNA.
147
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197