In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22
Your body is creating and killing about 2.4 million red blood cells per second.
17
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
In one day, adult lungs move about 10,000 litres of air.
11
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The levels of two stress hormones, cortisol and epinephrine which suppress the body's immune system, will actually drop after a dose of laughter.
112