Smokers are known to suffer from high rates of depression and other mental health problems, and now a study reports that even people exposed to secondhand smoke are at significantly increased risk and more likely to be hospitalized for mental illness. <http://www.nytimes.com/2010/06/15/health/research/15haza.html>http://www.nytimes.com/2010/06/15/health/research/15haza.html "People Who experience mood swings, fear, voices and visions"