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Did you know?
There are 60,000 miles of blood vessels in every adult human.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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There are more bacteria in your mouth than there are people in the world.