Running in Chicago’s Summer Heat and Humidity
  • July 22, 2013
  • A few weekends ago, I pushed myself too hard without listening to and re-hydrating my body and, for the second time in two years, I helped myself to some heat exhaustion. Not awesome. Not pretty. Learn from my mistakes, as they are many.

    It’s easy to see sun glistening on the lake and take your long run later in the day than you should, but prepare, hydrate and listen to your body and you can avoid an unplanned rest week (lame).

    Marathon Guide and Runner’s World both have some tips for the sweaty runs, but I’ve compiled them below:

    Prepare for a run in heat and humidity:

    • If you’re not peeing clear, you’re not hydrated enough (That’s not a direct quote, but my high school track coach used to say that), but seriously, watch the color and volume of your urine
    • Get used to running in the heat for two weeks before a long run
    • Plan your run around the time of the day – “Run when your shadow is taller than you are.”
    • Watch the heat index, it’s the most related to heat exhaustion. Likelihood of getting heat exhaustion is closely related to the heat and humidity – calculate the heat index here

    Maintain hydration while you run:

    • Don’t wait to be thirsty to drink water, drink “4 to 8 ounces of water and/or sports drink every 15 to 20 minutes.”
    • Remember, when you sweat, you’re not just losing water. You’re losing sodium, chloride, potassium, magnesium and calcium, make sure you’re replacing those minerals as you re-hydrate.

    Recognize the signs of heat exhaustion:

    I hate to quote WebMD because it makes me crazy (I always have mono if I’m really checking the symptoms), but its guide to heat exhaustion provides a great look at what you should watch for while you’re out on your long runs on hot days.

    There are two types of heat exhaustion:

    • “Water depletion. Signs include excessive thirst, weakness, headache, and loss of consciousness.”
    • “Salt depletion. Signs include nausea and vomiting, frequent muscle cramps, and dizziness.”

    Stay safe out there, runners.

    About Jeana Anderson Cohen

    Jeana Anderson Cohen is the founder and CEO of aSweatLife.com a destination for living your best life, with fitness as the catalyst. She's also the co-founder and head of strategy of the SweatWorking App. But before starting health-focused companies Jeana earned a degree in Journalism from the University of Wisconsin-Madison. For the first decade of her career, she created and executed social media strategies for brands. aSweatLife fuses her experience and her passion for wellness and SweatWorking was the natural evolution of that experience. You can find Jeana leading the team at aSweatLife, hosting aSweatLife’s monthly #Sweatworking events, and - on the rare evening off - you may find her using her Personal Training certification to coach group fitness classes across Chicago.

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