JAMA Medical News is coming to you live from the American Heart Association’s Scientific Sessions conference in Philadelphia. This year’s conference included a timely topic: the e-cigarette epidemic in youth. Host Jennifer Abbasi interviews Rose Marie Robertson, MD, the AHA’s deputy chief science and medical officer, about the latest epidemiological data, what the science says about e-cigarettes, and what the AHA is doing to counter the vaping trend in youth. Related article: e-Cigarette Use Among Youth in the United States, 2019 JAMA AHA 2019 Scientific Sessions Website