Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
There are about 255 babies born worldwide every minute.
46
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The human sigh acts as a physiological reset button.
23
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
You can't tickle yourself.
29