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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
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There are more bacteria in your mouth than there are people in the world.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.