After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
There are about 1,400 different species of bacteria in your belly button.
10
It takes approximately 12 hours for food to entirely digest.
93
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
A person will burn 7 percent more calories if they walk on hard dirt compared to pavement.
45
About half of all Americans are on a diet on any given day.
29
Your body is creating and killing 15 million red blood cells per second!
14