Maybe not suddenly, but gradually. I think there is something to that theory that depression shows up when our subconsious has something to tell us and we aren't listening. We need to learn how to pay attention to our feelings and our needs without it progressing to that point. There are a lot of skills that we need to learn so that we know how to live a satisfying life and maintain it. That is something that medication does not give us. Until those issues are addressed, we remain at risk for depression.