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.
22
More people use blue toothbrushes, than red ones!
66
In Japan, condoms are commonly sold 'door to door'!
54
A person will burn 7 percent more calories if they walk on hard dirt compared to pavement.
45
It takes about 20 seconds for a red blood cell to circle the whole body.
102
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
Gardening is said to be one of the best exercises for maintaining healthy bones.
40
Sex burns about 360 calories per hour.
860