I wonder if other people are like me: ponder in bed about what dire medical diagnosis they will receive, what will be the cause of their demise when they can’t sleep at 2 am. I am a cardiologist and I have had my own share of illnesses (coronary artery disease requiring a stent, aortic stenosis treated with a transcatheter aortic valve replacement) but strangely, it is not cardiac events that I consider. For me, it is cancer. If I have had vague abdominal discomfort the day before, in the middle of the night I worry, “Do I have pancreatic cancer?” I warn my patients, especially those with atrial fibrillation, about strokes, but a stroke was something I thought little about until recently.