This research will begin with the statement that heart disease is a major cause of concern all around the world as vast numbers of people are affected by this condition every year. Heart disease appears to be indirectly caused by an unhealthy lifestyle which includes a diet rich in fats, getting no exercise, smoking, and stress. These factors can lead to high levels of cholesterol build-up or an increased blood pressure, both of which have been implicated as major risk factors for heart disease. The care of people who are suffering from heart disease places a huge strain on the healthcare resources. There has been a trend of the mortality due to heart disease falling, and this has been attributable to an increasingly healthy diet adopted by people once diagnosed and advances in medical care. It is important to identify the reasons for this reduction in mortality as it will enable prevention strategies to be implemented at the population level. It has been recognized that while heart disease is a worldwide problem, it is more prevalent in industrialized nations and this may be attributable the consumption of rich food, a lack of exercise, smoking cigarettes and even mental stress. In fact, in the United States, it has been estimated that about 40% of deaths are related to sedentary lifestyle. The fact that heart disease is more prone to affect industrialized nations is especially apparent in China, where heart disease is showing an increase gradually with increased urbanization.