Recently a study made the rounds that sought to cast doubt on the efficacy of antidepressants. At the core of this misleading study was a real truth – that depression isn't merely a question of "not enough serotonin." But what exactly does that mean? Is this a new discovery? And why doesn't that mean that medication focused on serotonin doesn't work? Explaining this brilliantly and with singular charm is Dr. Dean Burnett!