Slow heart rate or #bradycardia if left untreated, can become severe or chronic and can lead to: Heart failure, Fainting (syncope) Chest pain (angina pectoris). A person should see a doctor for bradycardia when: they experience an unexplained change in heart rate that lasts for several days. Adults and children who have a low pulse and experience severe symptoms, such as chest pain or fainting, should also go to the hospital. Homeopathy for heart ailments
