Newsplex - Martha Jefferson HealthWise - Headlines

Healthwise: Heat Strokes and Dehydration

June 20, 2012

From hanging out at the pool to an afternoon run, if you’re planning to spend an extended amount of time under the sun, you could be putting yourself at risk for dehydration or heat stroke.

“It is particular in high humidity because that makes you sweat more. Even an 80 degree day can cause dehydration,” said Dr. David Mahoney of the Charlottesville Wellness Center.

There’s one major difference between dehydration and heat stroke: the lack of sweating.

“With heat stroke, your body just doesn’t have enough water to cool itself off,” said Dr. Mahoney.

Dr. Mahoney says having a heat stroke or extreme dehydration can be dangerous, even fatal.

“Your body can't cool itself off. You develop a high fever and any fever over 103 to 104 degrees should require the person to go the emergency room immediately for a fluids and rehydration,” said Dr. Mahoney.

A heat stroke is the kind of condition that Dr. Mahoney says often happens instantly.

“All of a sudden you're functioning just fine and it can all of a sudden just sneak up on you and before you know it you're dizzy, running a fever of 104 degrees, and you're confused or incredibly fatigued,” said Dr. Mahoney.

That’s why Dr. Mahoney says it’s important to drink plenty of fluids and recommends choosing water over caffeinated drinks.

“Caffeine is what’s called a diuretic and diuretic increases your urine output and increasing your urine just dehydrates you even more,” said Dr. Mahoney.

The next time you’re out at the pool or doing yard work, just remember a few extra sips of water could keep you from taking a trip to the Emergency Room.

Dr. Mahoney also suggests drinking water before, during, and after outdoor activity.

The comments sections of are designed for thoughtful, intelligent conversation and debate. We want to hear from our viewers, but we only ask that you use your best judgment. E-mail is required, but will not be displayed with comment.

  • Comments cannot be profane or vulgar. We will not post comments that use profanity or cross the lines of good taste.
  • We will not post comments that use hate speech. Slurs, stereotypes and violent talk aren’t welcome on our website.
  • Comments should not attack other readers or people featured in our stories personally. Any accusations should be backed up with facts.
  • Any comment we post will be posted in its entirety. We do not edit any comment that we post.
  • Comments should contribute to the discussion. We will not post comments that don't advance the discussion. Flaming and/or trolling will not be tolerated.
  • Comments should not attack other posters. Let's keep the focus on the content of the story.

    As a host welcomes a wide spectrum of opinions. However this is a site that we host. We have a responsibility to all our readers to try to keep our comment section fair and decent. For that reason The Newsplex reserves the right to not post or to remove any comment.

    If you have any ideas to improve the conversation or this section let us know. Send an e-mail to


powered by Disqus
The Charlottesville Newsplex 999 2nd Street S.E. Charlottesville, VA 22902 434.242.1919 – Main 434.220.7522 - Newsroom
Gray Television, Inc. - Copyright © 2002-2014 - Designed by Gray Digital Media - Powered by Clickability 159750905