Japanese 気分転換 in Cantonese? Is there an expression in Cantonese with roughly the same meaning as the Japanese 気分転換 (I guess it's 氣分轉換 in Chinese characters)?
I would include an English translation but something might get lost in translation, so I'll just refer to these examples.
I think if this this phrase means 

release your stress and get a little rest, (maybe take some breath to help you relex ?)

there is some Chinese expression “缓口气”