A sports drink is a beverage designed to help athletes and active individuals stay hydrated and replenish electrolytes lost during physical activity. These drinks typically contain water, sugars, and electrolytes like sodium and potassium, which are essential for maintaining fluid balance and muscle function. Sports drinks are often consumed during or after exercise to improve performance and recovery. They can be particularly beneficial during intense workouts or endurance events, such as marathons or triathlons, where maintaining hydration and energy levels is crucial for optimal performance.