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Did you know?

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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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

The seed-to-seed life of flowering plants. The seed-to-seed life of flowering plants.
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Life cycle of Ascaris: Adult worms (1) live in the lumen of the small intestine. A female may ... Life cycle of Ascaris: Adult worms (1) live in the lumen of the small intestine. A female may ...
Video: Transcription - Introns and exons

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