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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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The average office desk has 400 times more bacteria on it than a toilet.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.