This country is full of obesity. Almost half of our citizens are overweight, and their numbers, in both population and mass, are only increasing. I spend much of my days ruminating about one in particular: Xander, a patient I have watched since birth. He was a fat baby, he was a fat toddler, a fat grade-schooler, a fat teen, and adult. His parents couldn’t help. Taco Bell didn’t help. I tried to help as his pediatrician, but this was an appetite that wasn’t stopping for anything.