Although many people think of heart disease as a man's problem, women can and do get heart disease. In fact, heart disease is the number one killer of women in the United States. It is also a leading cause of disability among women. The most common cause of heart disease is narrowing or blockage of the coronary arteries, the blood vessels that supply blood to the heart itself. This is called coronary artery disease and happens slowly over time. It's the major reason people have heart attacks . Prevention is important: two-thirds of women who have a heart attack fail to make a full recovery. The older a woman gets, the more likely she is to get heart disease. But women of all ages should be concerned about heart disease. All women can take steps to prevent it by practicing healthy lifestyle habits.