Evidence is building that products of the cacao plant, especially dark chocolate, are good for your heart. Medical studies show that people who eat dark chocolate have healthier cardiovascular systems, boasting better blood circulation and lower blood pressure and cholesterol levels. Cardiologist and Everyday Health columnist T. Jared Bunch, MD, recommends chocolate as part of your strategy to keep the world’s No. 1 killer disease at bay. “Dark chocolate should be included in a life plan that includes exercise, eating healthy foods that are largely plant-based, getting adequate sleep, stress reduction, and maintenance of weight,” says Dr. Bunch.