The average sperm cell swims at 8 inches per hour.
76
There are about 1,400 different species of bacteria in your belly button.
10
The average person's skin weighs twice as much as their brain.
131
There's 100 trillion good bacteria living in your body.
17
In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22
Within three days of death, the enzymes that once digested your food begin to eat you.
22
The human brain uses approximately as much energy as a 10 watt light bulb.
120