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Did you know?
When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
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Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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If you could remove all of your skin, it would weigh up to 5 pounds.
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There are more bacteria in your mouth than there are people in the world.