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Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
Did you know?
All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
Did you know?
The human body produces and destroys 15 million blood cells every second.