Dehydration means an abnormal depletion of body fluids, which occurs when fluid intake does not match body fluid loss, giving rise to imbalances. Dehydration is often the result of a scarcity of drinking water, which in turn is linked to population growth and global warming.

Dehydration Effects on Health

Fluid intake occurs principally during drinking (about 60 percent) and eating (about 30 percent); 10 percent of fluid intake results from metabolic processes within the body.

Fluid loss occurs through excretion from the kidneys (which in resting conditions amounts to approximately 60 percent of the total fluid loss), excretion from the large intestine (approximately 5 percent), and evaporation of water from the respiratory tract and sweat secretion (about 35 percent). Excessive fluid loss can be fatal, because water is ...

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