Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.
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Cyanide works by making the human body unable to use oxygen.
Brain scans showing the white-matter pathways involved in everyday learning:
Major structures of the brain.
Relationship of the 12 cranial nerves to specific regions of the brain.