Your ears secrete more earwax when you are afraid than when you aren't.
229
The average sperm cell swims at 8 inches per hour.
4
The smallest human penis ever recorded was just 5/8 of an inch long!
77
The human brain is insensitive to pain.
76
The average human body contains enough iron to make a small nail.
50
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
The skin on your lips is 200 times more sensitive than your fingertips.
345
Every year your body replaces 98% of your atoms.
119