About the Editor: Frank B. Hu, MD, MPH, PhD—Understanding the Effects of Diet and Lifestyle on Cardiometabolic Diseases

With no clear idea of what he wanted to do with his life, it was an ironic turn of fate that drew Frank B. Hu to medicine. “I was studying for my college entrance exam—a very stressful time—and I suddenly felt unbearable pain. A severe stomach ache,” he says. The pain eventually subsided, but while in the emergency room, the kindness he was shown by hospital staff left an impression. “When you’re young, you don’t really think about health care,” he says. “But seeing the system up close, having a positive experience—it made an impact.”