Deep Breathing gives you health benefits similar to aerobics.
39
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
On average, there's 100 billion neurons in the human brain.
83
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
21
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Unlike dogs, pigs, and some other mammals, humans cannot taste water. They taste only the chemicals and impurities in the water.
95
