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
Within three days of death, the enzymes that once digested your food begin to eat you.
22
A person can live without food for about a month, but only about a week without water.
156
Our eyes are always the same size from birth, but our nose and ears never stop growing.
269
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
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
32
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
The human sigh acts as a physiological reset button.
23