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Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

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Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

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As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Structures of urea and diethylurea. Structures of urea and diethylurea.
The three stages of cell signalling: receptor activation, signal transduction, and a cellular respon The three stages of cell signalling: receptor activation, signal transduction, and a cellular respon
Chemical structures of ester and amide local anesthetics Chemical structures of ester and amide local anesthetics
Structures of the fingernail. Structures of the fingernail.
The Structures of the Retina The Structures of the Retina
A graphic depiction of predisposing alleles characteristic of a threshold trait within a population, A graphic depiction of predisposing alleles characteristic of a threshold trait within a population,
Video: Structures that affect circulation - venous return

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