The National Weather Service has already issued an excessive heat warning in Chicago for the next two days. Dr. Taison Bell discusses the symptoms you may experience if you're suffering from heat exhaustion that may result in a heat stroke and what you can do to protect yourself. #heatexhaustion #summer #health Get a fast-paced look at the latest from the border to Main Street to the White House on "NewsNation Live with Marni Hughes." Weekdays starting at 10a/9C.#NewsNationLive NewsNation is your source for fact-based, unbiased news for all America. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib.al/YDOpGyG How to watch on TV or streaming: trib.al/Vu0Ikij