The process of nerve impulse conduction is mainly excitation or action potential conduction along the nerve fibers. When the nerve fiber is at rest, the membrane is positive outside and negative inside, and the membrane level rapidly drops back down and gradually returns to resting level, called repolarization. The potential changes that occur with depolarization and repolarization are the basis for the electrical activity of the heart, so it is important to pay attention to protecting the heart in general and to develop a good lifestyle. Do a low sodium and low fat diet to prevent increasing the burden of circulatory load on the heart. It is also important to get more rest, eat more fresh vegetables and fruits, and eat more foods that contain too much potassium ions to facilitate the normal conduction of nerve impulses and ensure a healthy heart.