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
Your body is creating and killing about 2.4 million red blood cells per second.
17
In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19
If you hold farts in during the day, they'll just come out when you sleep.
16
A person can live without food for about a month, but only about a week without water.
156