“…Cyclothymic temperament has been shown to be a factor that predisposes to substance and alcohol abuse in the general population (Maremmani et al, 2006;Unseld et al, 2012). In clinical populations of alcohol dependents (Pombo et al, 2013;Schaller et al, 2010;Vyssoki et al, 2011), heroin-addicted subjects (Maremmani et al, 2009), cocaine users (Maremmani et al, 2008) and substance use disorders (Unseld et al, 2012), cyclothymic temperament and, more generally, a bipolar spectrum diathesis showed prevalence rates higher than in general population. The presence of cyclothymic temperament has also been associated with the risk of unmasking a full-blown bipolar syndrome (Maremmani et al, 2008); it predicted: early age at onset, polydrug abuse, greatest level of psychosocial burden and dysfunction, and worse outcome both of substance use and mood disorders.…”