Dr. Julie Smith is sitting behind a rainbow of five Post-it notes, each meant to represent one of the “Top Five Signs of High-Functioning Depression.” Said signs will be familiar to anyone who has spent time scrolling through the part of social media devoted to improving one’s mental health: “You do everything the world asks of you, so no one would ever know you feel empty inside,” you don’t find pleasure in the same things anymore, social events are tiring.