The human body contains over a billion miles of DNA.
147
One human hair can support 3 ounces.
191
Our brains have a negativity bias and will remember bad memories more than good ones.
15
In one day, adult lungs move about 10,000 litres of air.
11
Only humans shed emotional tears.
331
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
Enamel is hardest substance in the human body.
61