The function of the heart is to circulate (pump) blood throughout the body to provide oxygen and nutrients and to remove waste products. The heart then pumps the deoxygenated blood through the lungs to release carbon dioxide and collect oxygen.
The pumping ability of the heart is controlled by an internal electrical system. Problems with the heart's electrical system can cause heart rhythm disorders, such as atrioventricular block that you have, ventricular tachycardia. The ECG is crucial in detecting cardiac arrhythmias and myocardial infarction. The ECG is a non-invasive medical test that detects cardiac abnormalities by measuring the electrical activity generated by the heart as it contracts. It may also help to identify other cardiovascular disease including cardiac hypertrophy, heart inflammation, coronary artery disease, heart failure, and electrolyte imbalance, etc.
High blood pressure, high LDL cholesterol, and smoking are key risk factors for heart disease. About half of Americans (49%) have at least one of these three risk factors.
To help prevent heart disease, you can:
Eat healthy and get active.
Watch your weight.
Quit smoking and stay away from secondhand smoke.
Control your cholesterol and blood pressure.
If you drink alcohol, drink only in moderation.
Take steps to prevent type 2 diabetes.
Manage stress.