Your heart will pump about 212 million liters in its lifetime.
26
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
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
Surgeons who listen to music during operations perform better than those who don't .
87
The whiter your tongue, the more germs there are on it.
88
Clinophobia is the fear of beds!
30