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
Enamel is hardest substance in the human body.
61
Every human spent about half an hour as a single cell.
144
Your heart will pump about 212 million liters in its lifetime.
26
Human hair and fingernails continue to grow after death.
7
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199