When winter comes, people's mood darkens like a winter's haze. With loss of appetite, insomnia, and an inability to concentrate, the body becomes listless and the "depression index" seems to rise.
時序入冬，心情也像冬天的陰霾一樣幽晦不明，吃不下、睡不著、注意力無法集中、全身無力等「憂鬱」指數彷彿也隨之上升。