To prevent dehydration during a workout, it is effective to drink water before, during, and after exercise. A good strategy is to consume about 17–20 ounces of fluid 2 to 3 hours prior to exercising. During the workout, aim to drink about 7 to 10 ounces every 10 to 20 minutes, especially if the session lasts longer than an hour. Staying mindful of electrolyte loss through sweating and consuming electrolytes in beverages or sports drinks can further enhance hydration and performance.