There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
The average sperm cell swims at 8 inches per hour.
4
You can't tickle yourself.
29
In one day, adult lungs move about 10,000 litres of air.
11
A human being loses an average of 40 to 100 strands of hair a day.
133
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197