Water Wisdom

from the Healthy Living area

You’ve heard all the advice: Drink eight glasses of water a day. Stay properly hydrated while exercising. Sports drinks aren’t just for professional athletes.

Yet you’re still unsure whether you’re drinking the right amount for good health.
How much fluid should you really be taking in daily? Do you need to add extra when you’re physically active? And is too much water dangerous?

Everyone’s body needs water. We lose it by sweating, excretion, or simply not taking in enough through foods—like fruits and vegetables—and drinks. Mild dehydration (losing less than two percent of your body weight due to inadequate fluids) can cause health problems, including dizziness and headache.

To keep your body supplied with the fluid it needs, especially when exercising, follow these tips:

  • Get the basics. Most women need eight to nine cups of total fluids a day, including all beverages and the water in foods.
  • Increase according to the weather. High temperatures or humidity outside, heated indoor air and high altitudes all cause you to need more fluids.
  • Add when exercising. Drink one cup of fluids every 15 minutes during physical activity, advises Werner W.K. Hoeger, Ed.D., FACSM, professor of kinesiology and director of the Human Performance Laboratory at Boise State University. He recommends sports drinks over water when exercising because they contain electrolytes—important to provide the minerals necessary for proper cellular metabolism—which is disrupted during physical exertion. Electrolyte replacement also helps maintain proper muscle contraction and cardiac function.
  • Add more for big events. If you’re going to be in a race or charity walk, make sure you drink enough to be well-hydrated the day before, Hoeger adds. Also, drink a glass of fluids an hour before the event.
  • Drinking for two? Pregnant and nursing women need additional fluids. Talk with your health care professional about what’s best for you.
  • Still thirsty? If drinking fluids doesn’t relieve your thirst, you may have a health condition such as diabetes. See your health care professional right away.
  • Too much of a good thing. In very rare cases—chiefly among marathon runners—drinking too much fluid leads to a life-threatening illness, hyponatremia. This occurs when sodium levels in the blood fall too low. It happens chiefly to athletes who have run for more than four hours and gained a lot of weight during the race from drinking.

For more information on the health topics mentioned in this article visit

the HealthyWomen.org areas below.

Fitness: www.healthywomen.org/condition/fitness

Healthy Living: www.healthywomen.org/ages-and-stages/healthy-living/diet-and-nutrition

Diet and FitnessHealthCenter: www.healthywomen.org/healthcenter/diet-and-fitness

© 2011 HealthyWomen. All rights reserved. Reprinted withpermission from HealthyWomen. 1-877-986-9472 (toll free). On the Web at:http://www.HealthyWomen.org.

3 Responses to Water Wisdom

  1. Great tips. Do you have any particular advice for pregnant women?

  2. joymamun says:

    water being soul of health because all of diet stuffs which we take everyday are soluble in water and finally come out from our body and keep very cooling down & poisonous free of body. In fact, we did not take fruits and vegetables enough but it should cause they can furnish fluid in our body besides due to adequate fiber they guard from piles and or piles cancer. This is very good writing and please keeps it up such health conscious article.

    Blog Comments

  3. Andy says:

    Very informative and well written.

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