35,000 people in the U.S. will die from the flu annually.
6
During a typical human life span, the human heart will beat approximately 2.5 billion times.
21
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
37
Your ears secrete more earwax when you are afraid than when you aren't.
229
Your skin is actually an organ.
88
About 400 different kinds of microbes live on and in the human body.
-3
Children are more allergic to cockroaches than they are to cats!
46
Fingernails grow fastest on the hand you favor.
44