I need help getting my parents to quit smoking?

Update: My parents both smoke.My Mom not as much, but my Dad smokes multiple times everyday. He always says that he doesn't smoke that much, but they have a dog food bag full of cigarettes from one week. The bag is filled to the rim. I'm afraid if I talk to my Dad and Mom about they'll get angry at me. Please... show more My parents both smoke.My Mom not as much, but my Dad smokes multiple times everyday. He always says that he doesn't smoke that much, but they have a dog food bag full of cigarettes from one week. The bag is filled to the rim. I'm afraid if I talk to my Dad and Mom about they'll get angry at me. Please help, they've been starting to cough up brown and grey spit.
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