The problem with viewing antidepressants as the main method for preventing recurrence is that many people do not want to stay on medication for indefinite periods, and when the medication stops, the risk of becoming depressed again returns. Finding new ways of helping people stay well after depression demands an understanding of why depression keeps returning.
把抗抑郁药作为防止重犯主要方法的困难在于：很多人不愿意无限期地服用抗抑郁药，而一旦停止服药，又将再次面临着抑郁的危险。要想找到帮助患者巩固抑郁症疗效的新方法，就需要了解抑郁为什么会反复发作。