This video provides a great understanding of what heart disease exactly is. Heart disease is the leading cause of death not only in America, yet in the world. Heart disease is one of the most preventable diseases out there, however people do not realize their unhealthy habits put them at a greater risk for this disease. These unhealthy habits can include smoking, unhealthy diet, lack of physical activity and so much more. These unhealthy habits can be described three of the most likely reasons for heart disease. These three habits are also some of the most preventable conditions as well. Being knowledgeable is the first step, however you determine whether or not you will take action in preventing this disease.