Many people believe that they will be free of their anger if they express it, and that their tears will release their pain. This belief derives from a nineteenth-century understanding of emotions, and it is no truer than the flat earth. It sees the brain as a steam kettle in which negative feelings build up pressure. But no psychologist has ever succeeded in proving the unburdening effects of the supposed safety valves of tears and anger. On the contrary, over forty years ago, controlled studies showed that fits of anger are more likely to intensify anger, and that tears can drive us still deeper into depression. Our heads do not resemble steam kettles, and our brains involve a much more complicated system than can be accounted for by images taken from nineteenth-century technology.

① 감정 표출의 효과에 대한 오해

② 두뇌 구조와 우울증의 관계

③ 19세기 과학이 뇌신경학에 미친 영향

④ 감정에 따른 두뇌 반응의 상이성

⑤ 눈물과 분노의 심리적 유사성