translation.en: If every time we tore a muscle or every time we stretched a muscle or moved in a wrong way, cancer occurred -- I mean, everybody would have cancer almost.
translation.zh: 如果我们每次肌肉撕裂 或者每次以错误的方式拉伸肌肉 癌症就会产生——我的意思是，几乎每个人都会有癌症