Normal cardiac excitation originates in the sinus node and travels down the conduction system, reaching the atria and ventricles in sequence within a certain time frame, causing the heart to contract and diastole. Arrhythmias can occur if the sinus node excitation is abnormal or if the excitation arises outside the sinus node and conduction of the excitation is slow, blocked, or through abnormal channels. Thus, arrhythmias are abnormalities in the frequency and/or rhythm of the heartbeat due to disturbances in the origin and/or conduction of cardiac activity. Arrhythmias are an important group of cardiovascular diseases. It can occur alone or in association with cardiovascular disease. Since its onset can be sudden and cause sudden death, or it can continue to involve the heart and cause failure, it is important to master its occurrence, development and prevention measures. The prevention of arrhythmias is very important, to do the following: 1, regular life, regular living, do not overwork, mental tension, often stay up late, etc., usually to do appropriate physical exercise, to maintain a standard weight. 2, to maintain a good mood, avoid emotional excitement, to develop a wide range of interests, find their own fun, often regulate their emotions, so that they always maintain a good mood. 3.Actively prevent and treat the underlying diseases that cause arrhythmia, control the various risk factors of the disease, such as hypertension, hyperlipidemia, diabetes, etc., control and prevent rheumatic activities, prohibit smoking and limit alcohol, avoid cold and bacterial infection, etc. 4.If clinical symptoms of arrhythmia are found, they should be treated actively under the guidance of medical personnel to prevent delaying the disease and causing serious consequences and irreversible complications. Arrhythmia diet care: 1, arrhythmia eat what is good for the body (1) should supply food rich in VitB, VitC and calcium, phosphorus, to maintain the nutrition of the heart muscle and lipid metabolism. Should eat more fresh vegetables and fruits to supply vitamins and inorganic salts, but also to prevent dry stools. (2) Eat more vegetables and fruits containing more fiber, such as bananas, sweet potatoes, celery, etc. 2, arrhythmia best not to eat which food (1) limit the supply of calories. General 25 to 35 calories per kilogram of body weight per day, obese people can supply according to the lower limit. (2) limit the supply of protein, generally 1 to 1.5 grams per kilogram of body weight per day supply, the emergence of heart failure and high blood pressure, protein should be controlled within 1 gram per kilogram of body weight per day. (3) Limit high-fat and high-cholesterol foods, such as animal offal, animal oil, muscle, egg yolk, crab, roe, etc. (4) Prohibit substances that stimulate the heart and blood vessels, such as tobacco, alcohol, strong tea, coffee and spicy condiments. Be careful with flatulent foods, such as raw radish, raw cucumber, cabbage, leek, onion, etc., to avoid gastrointestinal distension, which affects the heart activity. (5) Limit the intake of salt and water. Especially for patients with edema, it should be strictly controlled. For those with edema and heart failure, salt and soy sauce should not be added to the diet.