There are about 1,400 different species of bacteria in your belly button.
10
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
57
Male hospital patients fall out of bed twice as often as female hospital patients.
71
When you get blackout drunk, you don't actually forget anything; your brain wasn't "recording" in the first place.
23
One quarter of the human brain is used to control the eyes.
43
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
21