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
The human brain doesn't stop developing until about 25 years old.
102
In one day, adult lungs move about 10,000 litres of air.
11
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
Your fingernails grow faster in summer.
744
Our brains have a negativity bias and will remember bad memories more than good ones.
15
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197