Sinus tachycardia is often caused by factors such as lack of oxygen and anemia. Sinus tachycardia can be treated by improving lifestyle habits, taking medications such as atenolol, and radiofrequency ablation. 1. Improve life habits: If you usually drink coffee or tea and other beverages with certain refreshing function, it is recommended to stop drinking. Strenuous exercise will stimulate the nerves, which may induce tachycardia, so avoid too strenuous exercise on weekdays. 2. Medication: You can take atenolol and other drugs that have the effect of lowering the heart rate to treat sinus tachycardia, but it should be noted that such drugs may cause gastrointestinal discomfort, cold limbs and other adverse reactions, and pregnant women are prohibited from taking such drugs. 3. Radiofrequency ablation: For patients who do not experience significant improvement with medication, radiofrequency ablation can be considered to eliminate abnormal pacing points in the heart to restore the heart rate. If there is sinus tachycardia, go to the hospital to improve the examination, consult the doctor, and follow the doctor’s guidance and advice for treatment. Do not self-medicate to avoid adverse reactions.