My dad used to be a smoker, but quit about 17 years ago. I'm away at college and it seems like every time I come home to visit my dad's breathing is worse and worse. He won't even leave the house because he needs oxygen all the time. He also won't take showers, go without his oxygen, and barely moves. My mom tells me he hasn't changed his socks for probably six months because getting dressed in the morning is so hard and is causes him to become exacerbated with his breathing. It takes him at least 20 minutes every morning to get dressed because of how his lungs are. My parents just recently moved to a one sory house so he wouldn't have to go up and down the stairs and now he doesn't exert himself as much and refuses to exercise just even a little. I can tell that his COPD is way worse than it was when I first started college almost 4 years ago. Being that I'm away at college, I feel I am missing out on the last bit of time I have left with him. How long could he possibly live (minimum and maximum) in years? If he has less time than I would hope, I just need to know so I can spend every moment possible with him.