There's 100 trillion good bacteria living in your body.
17
The human sigh acts as a physiological reset button.
23
Common pesticides such as roach, termite, and flea insecticide can be found in the bodies of the majority of Americans.
11
35,000 people in the U.S. will die from the flu annually.
6
Pain travels through your body at 350 ft. per second.
36
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
Enamel is hardest substance in the human body.
61
A man's beard grows fastest when he anticipates sex.
239