Seasonality in Bipolar Disorder: Effect of Sex and Age

Mood episodes in bipolar disorder (BD) are found to exhibit a seasonal pattern (SP), with peaks for manic episodes in spring-summer and peaks for depressive episodes in early winter (Geoffroy et al., 2014; Lee et al., 2007; Volpe et al., 2010; Medici et al., 2016; Parker et al., 2017). Mixed episodes are most often described to peak in early spring and summer (Cassidy and Carroll, 2002; Lee et al., 2007; Whitney et al., 1999; Yang et al., 2013). These patterns have been observed in countries of the northern as well as the southern hemisphere, however, rarely in equatorial regions (Medici et al., 2016).

Source: Journal of Affective Disorders - September 20, 2018 Category: Neurology Authors: Matth äus Fellinger, Thomas Waldhoer, Daniel König, Barbara Hinterbuchinger, Nathalie Pruckner, Josef Baumgartner, Sandra Vyssoki, Benjamin Vyssoki Tags: Research paper Source Type: research