Everyday suffering—those conditions or feelings brought on by trying circumstances that arise in everyone’s lives—is something that humans have grappled with for millennia. But the last decades have seen a drastic change in the way we approach it. In the past, a person going through a time of difficulty might keep a journal or see a therapist, but now the psychological has been replaced by the biological: instead of treating the heart, soul, and mind, we take a pill to treat the brain.