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Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.
Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
Did you know?
The average adult has about 21 square feet of skin.