<human>: So Reddit, I'm getting kind of desperate. I love my father very much, and I'm starting to get horribly worried about him. 

He works twelve hour days on average, being the manager at an office supplies store. There have been times when he worked forty hours in *three days*. He hardly eats at work, since he's so completely busy and understaffed. (His company won't let him hire more employees) He's lost around twenty-thirty pounds since he only ever eats dinner. In general, his company and his employee's are screwing him over. Whenever one of his employee's skips out on my father, my dad has to step in. And he can't do anything about it. We can't afford for him to quit his job of ten years right now either.

The worst part is that he's seemed to turn to alcohol and cigarettes to help cope. On average he drinks six-eight beers a night, and I have no idea how many cigarettes he smokes on average since he does it in secret even though he knows I know. He refuses to go to the doctor either, so I have no idea how much this affects him. This has been going on for about 2-4 years now.

I've tried confronting him about his problem two or three times, and sometimes he promises he'll stop, and other times he's simply annoyed at me. I'm terrified it's affecting his health- I would never be able to forgive myself if something happened to him because I was too scared to speak up. I'll be honest here, I have a history of depression. As I am right now, I don't think I would be able to live without my father.

Can you summarize the given text in a few sentences?
<bot>: My father's work is completely screwing him over, and he's turned to alcohol and cigarettes as a result. I just... want advice. Anything would be appreciated.