“…These rates also imply that for a large proportion of MCI patients the progression of their illness is uncertain, and that the diagnosis may, rather than diminish their feelings of uncertainty, even exacerbate them. Although MCI patients can by definition still function independently in everyday life, they do encounter a multitude of difficulties because of the mild cognitive changes, inducing profound stress, which, in turn, causes more practical, social and psychological problems [5,6] . In line with these findings, Hwang et al [7] showed that the incidence of mood disorders, such as dysphoria, anxiety, restlessness or irritability, was higher in MCI patients than in healthy age-matched controls.…”