We are born with 350 bones, and die with 206.
135
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
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
Perspiration is odorless; it is the bacteria on the skin that creates an odor.
39
Your ears secrete more earwax when you are afraid than when you aren't.
229
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8