“…For example, patients with major depression may smoke to improve depressed mood states (Hall et al, 1993). Similarly, patients with schizophrenia may find that smoking helps to reduce negative symptoms such as anhedonia, apathy, blunted affect, and emotional withdrawal (McChargue et al, 2002a(McChargue et al, , 2002b. Finally, patients with posttraumatic stress disorder and other anxiety disorders may smoke to cope with emotional and physiological distress (Beckham et al, 1997).…”