The function of electrolytes in physical performance is crucial, as they help maintain hydration, nerve function, and muscle contraction. Key electrolytes include sodium, potassium, calcium, and magnesium. During physical activity, these minerals are lost through sweat, and maintaining their levels is essential for optimal performance. Proper electrolyte balance prevents issues like muscle cramps, fatigue, and impaired coordination. Consuming sports drinks or electrolyte-rich foods, especially during prolonged exercise, can help replenish these essential minerals, allowing athletes to perform at their best while minimizing the risk of dehydration.