Banging your head against a wall uses 150 calories an hour.
57
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
A fetus develops fingerprints at eighteen weeks!
32
It has been shown that caffeine causes headaches when stopped suddenly and can cause morning headaches that are relieved by a dose of caffeine.
101
Enamel is hardest substance in the human body.
61
During menstruation, the sensitivity of a woman's middle finger is reduced.
47
Flu shots only work about 70% of the time.
18
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