Even as more and more American quit smoking cigarettes, individuals with serious psychological distress (SPD) are much less likely to extinguish their habit. A new study [...] found that individuals with mental health problems quit cigarettes at half the rate of those without psychological distress. "Overall, tobacco cessation programs have been very successful, but our research suggests that people with mental health problems have not benefitted from these," said Renee Goodwin [...] senior author.