What are the causes and treatments for bradycardia?

Bradycardia caused by long-term physical labor, mental stress and other physiological factors does not need treatment and can generally heal itself. If it is caused by coronary heart disease, nitroglycerin, clopidogrel and other drugs can be used for treatment, and bypass surgery can be performed if necessary. For bradycardia caused by myocarditis, hormone drugs can be used for treatment.