There's 100 trillion good bacteria living in your body.
17
In one day, adult lungs move about 10,000 litres of air.
11
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
One human hair can support 3 ounces.
191
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
If your DNA was stretched out it would reach to the moon 6,000 times.
256
In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22