It takes approximately 12 hours for food to entirely digest.
93
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
In one day, adult lungs move about 10,000 litres of air.
11
The average person will go on a date at least 100 times before they finally marry.
33
You can't tickle yourself.
29
Your fingernails grow faster in summer.
744
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Only humans shed emotional tears.
331