Studying neurocognitive functioning in patients with bipolar disorder during a stable euthymic period is an interesting burgeoning field of research.1 This study compared 60 such euthymic patients with 30 matched healthy controls, and found that there was an additional burden from cognitive dysfunction in the population with bipolar disorder.1 The level of some cognitive dysfunction appeared to correlate with some measures of disease progression or severity, such as previous hospitalizations, and number of hypomanic episodes.1

Reference:
1. Okasha TA, El Sheikh MM, El Missiry AA, et al. Cognitive functions in euthymic Egyptian patients with bipolar disorder: are they different from healthy controls? J Affect Disord 2014; 166: 14–21.