Electrolytes play a vital role in maintaining hydration by helping regulate the balance of fluids in and out of cells. Key electrolytes include sodium, potassium, and magnesium, which are crucial for muscle function, nerve transmission, and hydration. During exercise or heat exposure, electrolyte loss through sweat increases, making it essential to replenish these minerals to prevent dehydration and maintain overall bodily functions. Ensuring adequate electrolyte intake, particularly during prolonged physical activity, can enhance performance and support essential physiological processes.