Heart: The vital organ of humans and other animals, pumps blood and distributes to whole body through blood vessels. The study dealing with the functioning of Heart and its associated diseases is known Cardiology. Heart diseases are more prevalent in the current era. Heart disease is generally interchanges with cardiovascular disease which is caused by blockade or narrowing of the blood vessels. Various factors for the onset of heart diseases include age, family history, smoking, poor diet, high blood pressure and cholesterol levels, diabetes, obesity, physical inactivity, etc. Many diagnostic techniques have been developed for detecting the structure and functionality of the heart. With these innovative techniques developed, the mortality rate has been decreased as the disorder was diagnosed and treated accordingly.