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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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Cyanide works by making the human body unable to use oxygen.

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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

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Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

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