Exercising in hot weather requires careful planning and precautions to avoid heat-related illnesses. High temperatures increase the risk of conditions like heat exhaustion and heat stroke, making it crucial to stay hydrated by drinking plenty of water before, during, and after workouts. Electrolyte drinks can also help replace minerals lost through sweat. Wearing lightweight, light-colored, and loose-fitting clothing aids in regulating body temperature, while dark colors should be avoided as they absorb more heat.