As I was sitting in the hospital after a heart attack, my cardiologist walked in and said, "You have to stop eating meat." "Red meat?" I asked hopefully. "All meat," he replied firmly. It was disconcerting, to say the least, because meat has been in my life since I could feed myself. But my cardiologist explained, "If you don't want to end up back here again, you will start on an plant-based diet immediately." That day, I stopped eating meat. In fact, I asked the hospital food service to switch me to a vegetarian diet.