|
|
Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
Did you know?
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
Did you know?
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.