In reply to Natalia.

I don't think smoking is the reason and I also do not think people are making "excuses" for anything. In reality, cancelling a couple shows is not a big deal at all. According to Adele, when she quit smoking it "left her voice weaker." As a former smoker, I know the feeling and if she recently quit it will take years for her voice to fully recover and it may never be as strong as it was before when she was singing through gritty lungs and dark yellow teeth. The good thing is that the longer she goes without the smoking the better her health will be and since she is already rich I don't see the problem in her being more of a studio singer moving forward with regular tours (120+dates for one tour is a bit much and that is what she did with this tour).