For example, if you are sad for two weeks and have one other related symptom, such as fatigue, insomnia, or lessened appetite, and you are distressed or impaired at work or in other roles, then you have “subsyndromal depression.” But research shows that virtually anyone with two weeks of sadness feels distressed and is likely to be role-impaired, so in effect this category elevates moderately prolonged normal sadness into a mental disorder.
此外，一些旧版手册中明显有歧义的门类也没有得到处理。比如你这两个星期都很伤心并伴有其他相关症状，比如疲惫，失眠或是食欲不振，在工作中提不起精神或者不合群，那你就是“亚抑郁症”患者。但研究证明其实任何伤心了两个星期的人都会感到沮丧而且不合群，因此这个门类将温和的持续性正常悲伤提升成了一种精神障碍。