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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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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
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Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.