In Japan, condoms are commonly sold 'door to door'!
54
The average sperm cell swims at 8 inches per hour.
76
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15
Your ears secrete more earwax when you are afraid than when you aren't.
235
Your body is creating and killing 15 million red blood cells per second.
50
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
