biorhythm
🇺🇸
/ˈbaɪəʊrɪðəm/
🇬🇧
/ˈbaɪəʊrɪðəm/
A cycle of physical changes in the body that some people think can affect how we feel and behave.
I've been feeling tired and moody, maybe it's because of my biorhythms.
最近疲れ気味で気分も不安定で、多分自分のバイオリズムのせいだろう。