Everyone knows that heart disease is a men’s issue. But as it turns out, everyone is wrong. Heart disease is also the leading killer of women. And despite significant efforts to educate the public about women’s heart disease, the risks that women face are still badly understood—not just by the public, but by the medical community, too. Why are doctors still ill-prepared to treat women with heart disease? And why do so many women not realize the threat of cardiovascular disease to their own health?