Factor 1: The mixed blessings of old age Pretty much everyone has had the experience of seeing, at a coffee shop or wherever, someone who appears to be in their 50s only to later learn their true age is in the 70s.
乘數因子 1：老健時代的祝福與詛咒大家一定有過這樣的經驗，那個坐在咖啡館內的陌生人，外表看起來像 50 歲，實際上卻已年過七旬了。