cathartic       
adjective uk/kəˈθɑː.tɪk/ us/kəˈθɑːr.tɪk/
 宣泄的
involving the release of strong emotions through a particular activity or experience
  a cathartic experience 宣泄体验 
 I find it very cathartic to dance.  我觉得跳舞很宣泄。 
 See: catharsis
 - More examples
 - His writing seems cathartic - a release from the sometimes tragic events of his life.
 - A frequent staple of the short story in general is a cathartic moment.
 - Most people can testify to the cathartic effects of hurling all their frustrations and worries into an email to a friend.
 - There is something very cathartic about exercise.