Heart disease prevention :The ways to take care yourself far from heart disease are according to American Heart Association (English Edition)

WHO claimed that heart disease has killed people around 12 million people each year and it is a cause of life lost about a half of American lives and other developed countries around the world. Statistic indicates that heart disease is a cause of life lost in adult and also immediate death of famous people nowadays such as artist, politicians, businessmen, and relatives. Some of them did not seem to die but they did while they were watching movie, they were golfing, traveling with their family, having meeting and etc. Why do have to see people die because of this heart disease? And can it be cured?