Hydration plays a crucial role in performance during endurance sports, as it helps regulate body temperature and maintain electrolyte balance. Adequate fluid intake prevents dehydration, which can lead to fatigue, reduced endurance, and impaired cognitive function. Athletes must monitor their hydration levels before, during, and after exercise to ensure optimal performance. Consuming fluids containing electrolytes enhances hydration and maintains stamina throughout prolonged activities. Overall, proper hydration is essential for sustaining energy and maximizing athletic performance.