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Green tea is able to stop the scent of garlic or onion from causing bad breath.

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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

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