Higher morning NR1D1 (REV-ERBΑα) expression, robust circadian activity, and less light at night predict lower depression scores in arctic residents. - Gubin D; Kolomeichuk S; Danilenko K; Stefani O; Markov A; Petrov I; Voronin K; Mezhakova M; Borisenkov M; Shigabaeva A; Boldyreva J; Petrova J; et al. (Journal of affective disorders, 2026)