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
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
Human thigh bones are stronger than concrete!
63
One quarter of the bones in your body are in your feet!
36
Redheads require up to 20% more anesthesia to be knocked out.
112
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Each nostril of a human being register smell in a different way. Smells that are made from the right nostril are more pleasant than the left.
38