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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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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

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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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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

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The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Tracheostomy. A tracheotomy, or incision into the trachea, is performed to create an opening into th Tracheostomy. A tracheotomy, or incision into the trachea, is performed to create an opening into th
Hokusai, The Great Wave off Kanagawa, from the series Thirty-Six Views of Mount Fuji. Hokusai, The Great Wave off Kanagawa, from the series Thirty-Six Views of Mount Fuji.
Jacob Lawrence, You can buy bootleg whiskey for twenty-five cents a quart, from the Harlem Series. Jacob Lawrence, You can buy bootleg whiskey for twenty-five cents a quart, from the Harlem Series.
Eleanor Antin, Constructing Helen, from the series Helen's Odyssey. Eleanor Antin, Constructing Helen, from the series Helen's Odyssey.
Carrie Mae Weems, Untitled (Man Smoking/Malcolm X), from The Kitchen Table Series. Carrie Mae Weems, Untitled (Man Smoking/Malcolm X), from The Kitchen Table Series.
A fuel system tester connected in series in the fuel system so all of the fuel used flows through ... A fuel system tester connected in series in the fuel system so all of the fuel used flows through ...
Video: Role of the urinary system - acidosis and alkalosis

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