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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
There are more bacteria in your mouth than there are people in the world.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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.
In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.