Faster than the speed of sound
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
More Health Facts
10 seconds is the amount of time until unconsciousness after the loss of blood supply to the brain.
Curvy hips indicate smart women who will deliver intelligent children.
Scientists estimate that laughing 100 times is equivalent to a 10-minute workout on a rowing machine.