Every hour one billion cells in the body must be replaced.
17
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
There are about 1,400 different species of bacteria in your belly button.
10
In the average lifetime a person will breath in about 44 pounds of dust.
21
Unlike dogs, pigs, and some other mammals, humans cannot taste water. They taste only the chemicals and impurities in the water.
95



