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
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
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
There are about 1,400 different species of bacteria in your belly button.
10
You see your nose at all times, your brain just chooses to ignore it.
30
If you hold farts in during the day, they'll just come out when you sleep.
16
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197