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
The human body contains over a billion miles of DNA.
147
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
2 out of 3 adults in the United States have hemorrhoids.
7
Your ears secrete more earwax when you are afraid than when you aren't.
235
Your thumb is about the same size as your nose.
124
The average tastebud lives only 10 days before it dies and is replaced by a new one.
15
Every time you sneeze some of your brain cells die.
113