During intense exercise, signs of dehydration may include excessive thirst, dryness of the mouth and skin, fatigue, dizziness, and decreased performance levels. Other indicators are dark-colored urine and reduced urine output. As the body loses fluids through sweat, it’s crucial to replace lost fluids to maintain optimal performance and prevent serious issues like heat exhaustion or heat stroke. Athletes should regularly hydrate before, during, and after workouts. A proactive approach to monitoring hydration status can enhance endurance and overall workout efficiency.