 Lead investigator Patricia Regg, who's an assistant professor of psychiatry, said that the assumption is that psychiatric problems are more challenging to treat than quitting smoking, which may interfere with the treatment. However, these findings suggest a strong link between quitting smoking and improved mental health, while researchers have found an association between the two. The study did not prove a cause-and-effect relationship. They always say that. But they said we really need to spread the word and encourage doctors and patients to