When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
Smoking while pregnant increases the chances of spontaneous abortions (miscarriages) stillbirths and premature labor.
77
Gardening is said to be one of the best exercises for maintaining healthy bones.
40
Your body is creating and killing 15 million red blood cells per second.
50
Although African-Americans make up only 13% of the U.S. population, they accounted for one half of the estimated new HIV/AIDS diagnoses in 2004.
70
You mostly breathe from only one nostril at a time!
75
A man once sued his doctor because he survived his cancer longer than the doctor predicted.
74
About half of all Americans are on a diet on any given day.
29