Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
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
There's 100 trillion good bacteria living in your body.
17
Within three days of death, the enzymes that once digested your food begin to eat you.
22
If you hold farts in during the day, they'll just come out when you sleep.
16
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266