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 1,400 different species of bacteria in your belly button.
10
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
There's 100 trillion good bacteria living in your body.
17
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
In 1996, research found that having excessive body hair is linked to higher intelligence.
23