Emergency doctor's tips to survive extreme heat that will broil entire cities

By CBS News

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Waves of extreme heat will broil cities across the U.S. this week. Hydration is key to staying safe during extreme heat, says Dr. Reed Caldwell, a doctor with the NYU Langone Health's Ronald O. Perelman Center for Emergency Services. CBS News 24/7 is the premier anchored streaming news service from CBS News and Stations that is available free to everyone with access to the internet and is the destination for breaking news, live events, original reporting and storytelling, and programs from CBS News and Stations' top anchors and correspondents working locally, nationally and around the globe. It is available on more than 30 platforms across mobile, desktop and connected TVs for free, as well as CBSNews.com and Paramount+ and live in 91 countries. Subscribe to the CBS News YouTube channel: https://youtube.com/cbsnews Watch CBS News 24/7: https://cbsnews.com/live/ Download the CBS News app: https://cbsnews.com/mobile/ Follow CBS News on Instagram: https://instagram.com/cbsnews/ Like CBS

Tags: Heat Wave, Excessive Heat Warning, Severe Weather, CBS News Mornings Clips, U.S.