Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Our eyes are always the same size from birth, but our nose and ears never stop growing.
269
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
There's 100 trillion good bacteria living in your body.
17
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
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
If your DNA was stretched out it would reach to the moon 6,000 times.
256
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89