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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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Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.
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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.