The purpose of electrolyte balance in the body is to maintain proper fluid balance and nerve function. Electrolytes, such as sodium, potassium, and magnesium, are crucial for conducting electrical impulses between cells, which is vital for muscle contractions and overall cellular function. During physical activity, electrolyte loss through sweat can lead to imbalances, causing muscle cramps, fatigue, and impaired performance. Maintaining adequate electrolyte levels through diet and hydration is essential for optimal physical function and overall health, especially for active individuals who lose significant electrolytes during exercise.