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Drinking Too Much Water Can Lead to Problems


We know that it is necessary to drink enough water to replace the fluid lost by sweating during intense workouts in order to prevent dehydration. With the selling of bottled water and sports drinks on the rise, it is easy to find beverages just about everywhere there are food items.

Many of us were brought up on the idea that drinking large amounts of water is safe and the more the better especially when exercising in hot, humid conditions.

This thinking is generally correct. Many of us do need to hydrate ourselves sufficiently during intense, long-term exercise. However a new problem is on the rise and it results from drinking too much water during exercise. The problem is a condition known as hyponatremia which results from having a too low concentration of sodium in our blood.


Hyponatremia happens when the sodium content in the blood is too low (less than 135 milliequivalents per liter). Symptoms of hyponatremia include issues with the nervous system, such as tiredness, lethargy, confusion, irritability, seizures and coma.

COPYRIGHT_WI: Published on https://washingtonindependent.com/drinking-too-much-water-can-lead-to-problems/ by Jaya Mckeown on 2021-01-22T07:24:21.128Z

According to a report in the Archives of Pathology and Laboratory Medicine (1) that looked at the causes of marathon runner collapse in the 2003 Boston Marathon, it was found that a large number of runners had hyponatremia. Hyponatremia tends to be more common in slower marathon runners who finish races in more than 4 hours and others who use hyperhydration techniques before events.

Hyponatremia is difficult to diagnose without testing the sodium levels in the blood since the signs are close to dehydration. It is very risky to give fluids to someone with hyponatremia, because it could cause brain swelling and even death. Other indicators of too much water consumption showed a weight gain of more than 1 kilogram associated with a water intake of more than 3 liters.

The researchers recommended limiting water intake during a marathon to between 400-800 ml per hour. These recommendations could also be applied to other forms of vigorous exercise such as bicycling, hiking or dancing. Another recommendation from the American College of Sports Medicine is to drink fluids at regular intervals rather than at one time and consume salty snacks to replace lost sodium.

Hyponatremia can be a very dangerous problem and is counterintuitive to our belief about drinking lots of fluids during extreme exercise. In the coming summer months it is important for athletes, trainers and coaches to be aware of this problem in order to avoid serious consequences.

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About The Authors

Jaya Mckeown

Jaya Mckeown - Jaya moved to Boston from New York to pursue a master's degree in corporate communications at Emerson College. This experience, combined with her undergraduate degree in psychology and teaching, has equipped her with valuable skills that she employs on a daily basis in real estate negotiations, homebuyer and seller education, and successful promotion of the team's listings. Jaya's clients often characterize her as meticulous, proactive, and enjoyable to be around.

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