An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
The adult human brain weighs about 3 pounds (1,300-1,400 g).
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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
If your DNA was stretched out it would reach to the moon 6,000 times.
256
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
There are about 1,400 different species of bacteria in your belly button.
10