I don't know what evidence i'd need to stop, but when I hear findings like this, I immediately think-- "yes, people with more problems (esp w self control) will

I don't know what evidence i'd need to stop, but when I hear findings like this, I immediately think-- "yes, people with more problems (esp w self control) will smoke more." But how to tell whether it is causing their problems? And, what can we learn from outliers -- those who smoke and do very well?