C.S. Lewis once commented that belonging to a group is the strongest emotional drive a human possesses. I suppose social media is just the latest arena, though I think most people have some pretty visceral memories of the popular crowd in middle school. I haven’t thought about being popular in decades but it ranked among my top concerns throughout adolescence. I have since discovered that many never grow out of this phase. And for good reason. A sense of belonging is crucial to physical and mental health. Isolation is so stressful that it has now become a fully recognized mental illness all on its own in the latest iteration of…