What are the contraindications for sinus bradycardia?

The main contraindications for sinus bradycardia include the following points: 1. Avoid inducing factors: Patients with sinus bradycardia should尽量 avoid smoking and drinking alcohol, as tobacco and alcohol can induce atherosclerosis, increase the burden on the heart, and thus affect heart rate. In addition, excessive obesity and hypertension are also triggers for sinus bradycardia; therefore, maintaining a healthy weight and blood pressure level is recommended. 2. Use medication cautiously: Patients with sinus bradycardia should avoid using medications that can slow heart rate, such as beta-blockers like metoprolol and bisoprolol, to prevent further reduction in heart rate and worsening of the condition. Before taking any medication, patients should consult a doctor or pharmacist to ensure the medication is safe. 3. Moderate exercise: Patients with sinus bradycardia can engage in moderate physical exercise but should avoid overexertion and high-intensity activities to prevent increasing the burden on the heart. It is recommended to choose low-intensity forms of exercise such as walking or jogging and adjust the intensity and duration of exercise according to individual conditions. 4. Emotional stability: Patients should maintain emotional stability and avoid excessive tension, anxiety, or excitement, as these emotional changes may increase the excitability of the cardiac autonomic nerves, leading to alterations in heart rhythm, which is unfavorable for controlling the condition. 5. Regular作息: Maintaining a regular作息 routine, avoiding staying up late and excessive fatigue, and ensuring adequate sleep time can help the heart receive sufficient rest and recovery.