Staying hydrated during exercise is crucial for maintaining optimal performance and preventing dehydration. Proper hydration helps regulate body temperature, ensuring that the body can sweat effectively and manage stress during physical activity. It also supports joint lubrication, reducing the risk of injury and improving overall mobility. Additionally, adequate fluid intake can enhance endurance, as even mild dehydration can decrease performance levels. Hydration helps in transporting nutrients and removing waste products from the body, promoting faster recovery post-exercise. Thus, staying hydrated is essential for both immediate performance and long-term health.