A person will burn 7 percent more calories if they walk on hard dirt compared to pavement.
45
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
In one day, adult lungs move about 10,000 litres of air.
11
You're born with 300 bones, but when you get to be an adult, you only have 206!
17
A woman's sense of smell is most sensitive during ovulation.
34
Only 1% of bacteria cause disease in humans!
2
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