1.If you have palpitations. If you have palpitations, chest tightness and dizziness, you may have an arrhythmia, and you need to be examined by a cardiologist to determine if there is an arrhythmia. 2.If you use drugs to control your arrhythmia, you should not stop, reduce, or increase the dosage of drugs on your own to avoid danger. 3, arrhythmia can be divided into benign and malignant, the so-called benign is the arrhythmia attack, may be uncomfortable, but will not cause life-threatening. Malignant arrhythmias, when they occur, can seriously affect the blood output of the heart, causing syncope or even death, and even if there are no symptoms of such arrhythmias, once they are confirmed, they must be treated. 4.Once the arrhythmia is confirmed, it is necessary to know whether there is a latent heart disease or other diseases so that they can be treated together. 5, friends with arrhythmias should quit smoking, alcohol, coffee and betel nut, do not get angry, and maintain an optimistic and peaceful state of mind.