Human mood variations follow a circadian rhythm, as supported by numerous studies demonstrating that daily affective patterns, positive affect peaks, and mood symptoms are closely linked to underlying circadian timing and biological clocks.
Evidence for · 5
Melatonin Circadian Phase Timing and Stability: Associations With Mood Symptoms Among a Clinically-Enriched Sample of Young Adults With Mood Disorders.
2026 · cited by 1
Paper [0] demonstrates that circadian timing correlates with and predicts diurnal mood patterns and hypomanic symptoms in young adults.
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More for · 4
Circadian rhythms in major depressive disorder: mechanistic insights and therapeutic frontiers.
2026 · cited by 0
Paper [1] highlights that major depressive disorder involves profound alterations in circadian-regulated processes and diurnal mood patterns.
Circadian Timing Moderates Diurnal Positive Affect Rhythms in Adolescents.
2026 · cited by 0
Paper [2] finds robust diurnal rhythms in positive affect among adolescents that vary systematically with circadian timing measures.
When the Clock Shifts: A Comprehensive Review of Daylight-Saving Time (DST), Circadian Disruption, and Neuropsychological Risk in Chronic Mental Illness.
2026 · cited by 0
Paper [6] reviews how circadian disruptions from daylight saving time impair emotional stability and mood regulation across psychological disorders.
Emotional Clocks in Teens: Understanding Diurnal Mood Fluctuations in the Digital Age
2025 · cited by 0
Paper [7] shows that teen emotional expressions exhibit systematic diurnal fluctuations that parallel biological rhythms like cortisol and sleep-wake cycles.