<human>: I know that choosing to quit smoking is a personal decision that only he can make. But I love my father and really can't imagine my life without him, so i was hoping reddit had some ideas on how to motivate him to want to quit smoking. I have already gotten him to get an EKG exam but his heart is perfectly healthy, and so now he doesn't want to get an imaging test done for his lungs so that he can see the damage he's doing to himself. If anyone has any advice on things that I can do/say to help motivate him to quit, I'd really appreciate it.

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<bot>: My dad's 52 and he's been smoking since he was 15. I need advice on motivating him to want to quit because I love him and don't want to lose him.