Skip to content
My WebMD Sign In, Sign Up

Fitness & Exercise

Font Size

Hydration: The Key to Exercise Success

Quench your thirst safely this summer and avoid dehydration.

Choosing Your Hydration Fluid continued...

Drinking no more than eight ounces every 20 minutes - as Jeri Salazar does - provides enough but not too much fluid, Maharam says. He is one expert who believes that "the risk of dehydration, even in the heat, is far less than developing hyponatremia." Why? Although dehydration is more common, hyponatremia can kill. One easy way to stay safe during a race: Don't drink water at every station, he advises. A number of sports drinks contain sodium and other electrolytes that plain water does not.

Publicity about hyponatremia, however, raises concerns among many trainers, who say that dehydration remains the key problem for summer athletes.

"It is a very real problem, and you have athletes saying, 'I don't what to get hyponatremia,' and invariably they end up not drinking enough and get dehydrated," von Frohlich says.

Adds Jeri Salazar: "Many of the people I train initially believe that they should drink "as much water as possible" to avoid becoming dehydrated. However, more and more often these days, runners and the medical staff at races are being warned about the dangers of over-hydrating when running for an extended period of time."

"My runners ask me, 'How much should I drink?' I tell them, 'The answer lies in the process of determining individual fluid needs and developing a hydration strategy based on those needs,'" she says. "An appropriate hydration strategy can maximize running performance and reduce any risks of sub-optimal performance and or health issues."

Reviewed on March 12, 2009

Healthy Living Tools

Ditch Those Inches

Set goals, tally calorie intake, track workouts and more, all via WebMD’s free Food & Fitness Planner.

Get Started

Today on WebMD

Wet feet on shower floor tile
Flat Abs
Build a Better Butt Slideshow
woman using ice pack

man exercising
7 most effective exercises
Man looking at watch before workout
Overweight man sitting on park bench
6-Week Challenges
Want to know more?
Chill Out and Charge Up Challenge – How to help your tribe de-stress and energize.
Spark Change Challenge - Ready for a healthy change? Get some major motivation.
I have read and agreed to WebMD's Privacy Policy.
Enter cell phone number
- -
Entering your cell phone number and pressing submit indicates you agree to receive text messages from WebMD related to this challenge. WebMD is utilizing a 3rd party vendor, CellTrust, to provide the messages. You can opt out at any time.
Standard text rates apply

pilates instructor
jogger running among flowering plants
woman walking
Taylor Lautner