“…Evidence suggests that patients with depression also tend to forget or skip their medication more often after adjustment for potential confounding variables, including age, ethnicity, education, social support and measures of cardiac disease severity [69], thereby increasing the risk of arrhythmias and mortality. Similarly, depression has found to be a strong determinant of all dimensions of subjective fatigue in patients with coronary artery disease [70], which may influence patient motivation to engage in exercise [70]. The lack of exercise may also result from anticipatory anxiety, with ICD patients having a restricted lifestyle because of the fear of a shock [71].…”