The Grinch’s is two sizes too small. Al Green wants to know how you can mend a broken one. You can destroy them, steal them, break them. They can pine or ache or wander. Suffice it to say, hearts are a big part of our culture. After all, though our kidneys are vital, there aren’t many pop songs about them. Still, as important as they are to our culture, our hearts are even more important to our health. Heart disease is the leading cause of death in the United States, and chances are that you know someone who has been affected by heart issues. Dr. Sandeep Jauhar, the director of the Heart Failure Program at Long Island Jewish Medical Center and author of Heart: A History, takes a look at how we address heart health, and how we could do better.