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Dehydration is a condition where the water levels in the body are too low. This can result in numerous minor and major effects within the body and can be deadly. This article addresses dehydration, its causes, its symptoms and effects.
Dehydration refers to a deficit of total body water, with an accompanying disruption of metabolic processes. Dehydration is also a cause for hypernatremia. The term dehydration is distinct from hypovolemia (loss of blood volume, particularly plasma). Dehydration occurs when free water loss exceeds free water intake, usually due to exercise or disease, but also due to high environmental temperature.