https://yestino.com/zh-CN/entities/old-person-smell-ff74a4与 Old Person Smell 相关的全部事件zh-CNhttps://yestino.com/zh-CN/events/old-person-smell-84a282https://yestino.com/zh-CN/events/old-person-smell-84a282Sun, 06 Sep 2026 11:37:27 GMTExperts say that the smell comes from a chemical compound called 2-nonenal, and it can show up much earlier than one expects 来源：Hacker News