In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22
The average sperm cell swims at 8 inches per hour.
76
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
The average person's skin weighs twice as much as their brain.
131
The human brain doesn't stop developing until about 25 years old.
102
Within three days of death, the enzymes that once digested your food begin to eat you.
22
Your thumb is about the same size as your nose.
124