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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.

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More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

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Asthma cases in Americans are about 75% higher today than they were in 1980.

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Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Feral Chocolate/White Muscovy Duck hen at Lake Union, Seattle Feral Chocolate/White Muscovy Duck hen at Lake Union, Seattle
Ectopic pregnancies. (a) An ectopic pregnancy may occur in any of the locations shown. Interstitial Ectopic pregnancies. (a) An ectopic pregnancy may occur in any of the locations shown. Interstitial
How lateral inhibition produces contrast enhancement. (Based on Ratliff, 1972.) How lateral inhibition produces contrast enhancement. (Based on Ratliff, 1972.)
Secondary response begins more rapidly after exposure to antigen, produces more antibodies, and ... Secondary response begins more rapidly after exposure to antigen, produces more antibodies, and ...
(a) Chromosome painting with five different-colored markers in a normal cell. (b) Painting produces (a) Chromosome painting with five different-colored markers in a normal cell. (b) Painting produces
Here we show the first three divisions of cleavage, a process that carves up a zygote’s cytoplasm. ... Here we show the first three divisions of cleavage, a process that carves up a zygote’s cytoplasm. ...
Video: Attention Deficit Disorder (ADD)

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