Electrolytes play a crucial role in hydration during exercise by maintaining the body’s fluid balance and supporting nerve and muscle function. Sodium, potassium, calcium, and magnesium are primary electrolytes lost through sweat. Replenishing electrolytes is essential, especially during prolonged or intense workouts, to prevent cramps and dehydration. Sports drinks or electrolyte supplements can help restore these vital minerals. Adequate hydration, along with electrolyte balance, supports optimal performance and can prevent heat-related illnesses, ensuring athletes remain at their best during physical activity.