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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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Women are 50% to 75% more likely than men to experience an adverse drug reaction.
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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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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.