Cardiology is a medical discipline that deals with heart disorders in humans and animals. Physicians who specialize in cardiology are called cardiologists, while those who specialize in cardiac surgery are called cardiac surgeons. Some common cardiac diseases include angina, arrhythmias, congenital heart disease, coronary artery disease, heart attacks, heart failure, and others. Cardiovascular diseases are the leading cause of death worldwide and affect both men and women. By 2030, cardiovascular diseases are projected to cause 25 million deaths annually according to the WHO. Medications can help treat cardiovascular diseases by lowering blood pressure, regulating heart rate, reducing cholesterol to limit plaque buildup, stabilizing abnormal heart rhythms, preventing clotting in arteries