Electrolytes play a crucial function in the body during exercise, as they help regulate fluid balance, muscle contractions, and nerve function. Key electrolytes like sodium, potassium, and magnesium are lost through sweat and need replenishing to maintain optimal hydration and prevent muscle cramps. Proper electrolyte balance is essential to sustain performance, especially during extended or intense activities. Replenishing electrolytes through sports drinks or electrolyte-rich foods can help athletes recover and maintain physical capability during workouts.