Kissing an infection-free partner is good for your teeth!
141
Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
The first patented condom was meant to be reused!
47
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
About half of all Americans are on a diet on any given day.
29
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
We are born with 350 bones, and die with 206.
135
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92