There are about 1,400 different species of bacteria in your belly button.
10
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
The levels of two stress hormones, cortisol and epinephrine which suppress the body's immune system, will actually drop after a dose of laughter.
112
One human hair can support 3 ounces.
191
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55

