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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

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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.

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Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

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The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Parts of the ear Parts of the ear
Major parts of a cell. Major parts of a cell.
cell parts cell parts
Different parts of the body mature at different rates. “General” refers to the body as a whole: the Different parts of the body mature at different rates. “General” refers to the body as a whole: the
A gasoline testing kit, including an insulated container where water at 100°F is used to heat a ... A gasoline testing kit, including an insulated container where water at 100°F is used to heat a ...
By 2100, significant change will be in the far northern latitudes, parts of Asia, and Sub-Saharan By 2100, significant change will be in the far northern latitudes, parts of Asia, and Sub-Saharan
Video: Interpreting a cladogram Animation

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