Sinus tachycardia, or sinus tachycardia as it is called in medical terminology, can be relieved in most cases by treating the primary disease and avoiding the triggering factors. 1, lift the primary disease: sinus tachycardia is a tachycardia with normal pacing by the sinus node and a heart rate greater than 100 beats per minute. When there are primary diseases that cause sinus tachycardia, such as some non-cardiac diseases such as fever, anemia, hyperthyroidism, etc., sinus tachycardia can be relieved on its own after the primary disease is reasonably treated. Sinus tachycardia caused by primary cardiac diseases such as myocarditis and pericardial effusion can also be relieved after treatment. Avoiding triggering factors: For healthy people, the triggers of sinus tachycardia include nervousness, anxiety, exercise, or taking food with excitatory effect such as coffee, strong tea, alcohol, etc. When sinus tachycardia exists, you should try to avoid these triggers, maintain a reasonable lifestyle and healthy diet, and don’t be overly fatigued. 3, drug treatment: in the treatment of primary diseases and avoid triggers of sinus tachycardia has not seen improvement, can be considered under the guidance of the physician to choose β-blocker (such as metoprolol) or calcium antagonists to reduce the heart rate of drug therapy. When sinus tachycardia exists, there is no need to be overly nervous, timely consultation and active search for and treatment of the primary disease and try to avoid the triggers that may lead to sinus tachycardia in life, the majority of patients can be effectively relieved.