Yes, he does have breathing problems. its been evident in many interviews. What was also worrying is how much his hand shake. He was on Jamie Oliver’s show here in the uk recently and that was quite noticeable. But it is none of our business if he smokes or not. No one has the right to think they someone should intervene. I know people who are younger than him who have breathing problems and other health issues and have never smoked. Sadly old age creeps up on all of us. But Mark still looks in better shape now than he did prior to filming TFA.