The human sigh acts as a physiological reset button.
23
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22