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Sunday, November 27, 2011

Excessive Water Consumption During Exercise May Lead To Hyponatremia.

The Washington Post Share to FacebookShare to Twitter (10/25, Henricks) reports that excessive water consumption during exercise (for example, while running a marathon) may lead to "a potentially fatal medical condition" called exercise-associated hyponatremia. "Overhydration floods the body with fluid and causes the concentration of sodium in the blood to drop to abnormally low levels." The body's "cells absorb the excess water, which causes swelling, most threateningly in the brain, where it can result in seizures, coma, respiratory arrest and even death." The risk for hyponatremia increases proportionally to the volume of water taken in, the Post explains.
        Low Water Intake Associated With Increased Hyperglycemia Risk. Reuters Share to FacebookShare to Twitter (10/25, Norton) reports that according to a study Share to FacebookShare to Twitter published online Oct. 12 in the journal Diabetes Care, people who drink fewer than two glasses of water daily may be at an increased risk to develop hyperglycemia. For the study, researchers examined data on 3,615 adults in France, then followed them for nine years. Those who drank the least amount of water were more likely to develop high blood sugar. Researchers theorize that the hormone vasopressin, which regulates water retention, is elevated during periods of dehydration. However, elevated levels of vasopressin also increase blood sugar levels.

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