This common habit can lead to heart diseases / In rural America, heart disease is increasingly claiming younger lives / Why does heart disease affect so many young South Asians? / Heart disease is rampant in parts of the rural South. Researchers are hitting the road to learn why / 61% of U.S. adults will have some type of heart disease by 2050, report finds / Black people have the highest rates of death from heart disease. Could more Black cardiologists help?