It takes about 20 seconds for a red blood cell to circle the whole body.
102
Perspiration is odorless; it is the bacteria on the skin that creates an odor.
39
After an 11 year study, cell phones were shown not to increase chances of getting cancer.
14
The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
The first patented condom was meant to be reused!
47
Fingernails grow nearly 4 times faster than toenails.
31