Monitoring hydration during physical activity can be effectively achieved using several methods. One practical technique is to assess body weight before and after exercise; a significant decrease indicates fluid loss that should be replenished. Additionally, checking urine color can provide a quick visual cue—darker urine indicates a need for increased hydration. Athletes may also use hydration plans, which outline specific fluid intake goals based on duration and intensity of exercise. Incorporating drinks with electrolytes can be beneficial during prolonged or intense workouts for maintaining electrolyte balance.