While 7 men in 100 have some form of color blindness, only 1 woman in 1,000 suffers from it.
50
Your body is creating and killing 15 million red blood cells per second!
14
The average sperm cell swims at 8 inches per hour.
4
Enamel is hardest substance in the human body.
61
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
In Japan, condoms are commonly sold 'door to door'!
54
Your heart beats over 100,000 times a day!
54