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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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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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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.