Heart disease is the leading cause of death for people of most racial/ethnic groups in the United States, including African Americans, Hispanics and Whites. About 720,000 people in the U.S. suffer heart attacks each year. An estimated 43 million women in the U.S. are affected by heart disease. Since 1984, more women than men have died each year from heart disease. Ninety percent of women have one or more risk factors for developing heart disease.