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Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

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A lesion called a plaque in the brain of an individual with Alzheimer disease. A ring of degeneratin A lesion called a plaque in the brain of an individual with Alzheimer disease. A ring of degeneratin
Video: Phases of the ovarian cycle

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