From booed hydration breaks to cooling-gel vests, teams are trying everything to keep their players from overheating. Physiologists—and one World Cup team doctor—say feeling cooler is different than cooling the body

More than 1 in 3 World Cup matches face dangerously hot, humid weather. Here's how to protect yourself from heat illness.

FIFA’s new hydration breaks midway through each half were implemented to help players stay cool in the summer heat of Mexico, Canada and the United States, which some experts have…