可能是這樣的用法:

來源: 2016-09-18 22:45:40 [博客] [舊帖] [給我悄悄話] 本文已被閱讀:

From oxford learners dictionaries (entry of it)

  used to refer to a fact or situation that is already known or happeningWhen the factory closes, it will mean 500 people losing their jobs.

衰老不會傷害我可能是這個意思。