Atrial fibrillation is a relatively common heart condition, what causes it? Common causes of atrial fibrillation include hypertension, coronary artery disease, cardiac surgery, valvular disease, heart failure, cardiomyopathy, congenital heart disease, pulmonary embolism, hyperthyroidism, etc. It is associated with alcohol consumption, mental stress, water-electrolyte disorders, and severe infections; in addition, it can be combined with other types of arrhythmias. There is a lot of fibrous tissue in the atria, and atrial fibrillation is an abnormal discharge of fibrous tissue for a number of reasons, and studies have shown that this condition occurs mostly in the left atrium. Atrial fibrillation goes through a progression of pre-contraction – atrial tachycardia – atrial flutter – paroxysmal atrial fibrillation – sustained atrial fibrillation. The frequency of atrial fibrillation varies from person to person, some are fast and some are slow, some will last a long time and some will not feel it for a few minutes. Many people will have an attack at a very young age, and the earlier the onset, the greater the relationship with genetics. In recent years, as people’s standard of living continues to improve, more and more people are drinking alcohol, so the cause of atrial fibrillation is more difficult to treat, even if surgery is performed, the effect will be much worse than those who do not drink alcohol, so it is recommended to limit alcohol consumption for health. There are so many reasons that trigger atrial fibrillation, so you must be more careful to pay attention to prevent it on a daily basis.