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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.

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

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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

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