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In 1864, the first barbiturate (barbituric acid) was synthesized.

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Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

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Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Wood first appeared in plants called progymnosperms. Wood first appeared in plants called progymnosperms.
Reindeer antlers grow again each year under a layer of fur called velvet. This reindeer is losing th Reindeer antlers grow again each year under a layer of fur called velvet. This reindeer is losing th
A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan
Herbert Spencer (1820–1903), sometimes called the second founder of sociology, coined the term ... Herbert Spencer (1820–1903), sometimes called the second founder of sociology, coined the term ...
The nucleus is bounded by a double membrane called the nuclear envelope The nucleus is bounded by a double membrane called the nuclear envelope
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: EpiPen Animation (Part 1)

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