Anyone with sinus tachycardia should seek assistance from a cardiologist to find out the cause, and should be actively treated if it is caused by the following factors: 1. organic heart disease: myocardial ischemia, acute myocardial infarction, cardiomyopathy, heart failure, and acute myocarditis in young people or even in children. 2, sinus tachycardia caused by hyperthyroidism. 3.Sinus tachycardia caused by anxiety disorder and depression. 4.Rarely seen refractory sinus tachycardia and undesirable sinus tachycardia.