Summer is winding down but many fall athletes are just starting to warm up — sometimes too much. Linda Miller, wellness resource coordinator at the University of Northern Iowa, says athletes need to be cautious during long workouts in the hot sun — which can lead to heat stroke or heat exhaustion.Many Iowa high schools started their football practices this week. Miller says athletes of all ages need to drink plenty of fluids before, during and after practice.Miller says people who are showing signs of heat exhaustion need to get out of the heat right away. More serious cases may demand medical attention.

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