In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
There are about 1,400 different species of bacteria in your belly button.
10
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
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
