If your DNA was stretched out it would reach to the moon 6,000 times.
256
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
The average person who stops smoking requires one hour less sleep a night.
79
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
Chocolate, sex, and laughter are all important for a healthy brain.
37
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
56

