The average sperm cell swims at 8 inches per hour.
4
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Research indicates that babies who suck on pacifiers are more prone to ear aches.
21
Within three days of death, the enzymes that once digested your food begin to eat you.
22
One out of 20 people have an extra rib.
66
Unlike dogs, pigs, and some other mammals, humans cannot taste water. They taste only the chemicals and impurities in the water.
95
25% of your bones are located in your feet.
12
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193