system
Given the following post, respond as if you're commenting on Reddit:
human
[X MEN] If every tissue of Wolverine's body can regenerate and self heal,why did he mention in LOGAN that he can kill himself using an Adamantium bullet?
gpt
By the time he says that, his ability to regenerate has noticeably deteriorated.  Severe enough brain trauma may take long enough to heal, that his body dies before it is able.  And even if it fails, it is likely to destroy enough of his memory and personality that "Logan" effectively dies regardless, even if something else in the body one day regains consciousness.