2Muscle Weakness
Hyponatremia can be a serious health issue for athletics and active people because it would cause muscle weakness. This is because sodium is essential for maintaining the balance of fluids outside and inside of the body cells. In addition, it plays an important part in regulating muscle contraction and relaxation. When there is not enough sodium, other fluids and electrolytes can dominate and affect the activities of many muscle groups. That is why athletics need to replenish their sodium with sports drinks and food to ensure the best performance. [2]
