Every hour one billion cells in the body must be replaced.
17
The smallest human penis ever recorded was just 5/8 of an inch long!
77
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
Unlike dogs, pigs, and some other mammals, humans cannot taste water. They taste only the chemicals and impurities in the water.
95
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
The heart pumps about 1 million barrels of blood during an average lifetime!
30
There is a disease called ichthyosis that turns the skin scaly like a fish.
90
In the average lifetime a person will breath in about 44 pounds of dust.
21