There are about 1,400 different species of bacteria in your belly button.
10
If your DNA was stretched out it would reach to the moon 6,000 times.
256
Held in farts enter your bloodstream and are bad for your body.
26
The human sigh acts as a physiological reset button.
23
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Your thumb is about the same size as your nose.
124
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89