The COVID-19 pandemic is expected to trigger a global increase in mental health problems.
One of the many pathways by which COVID-19-related social changes might impact mental …

Background Prior cross-sectional studies have suggested that being a late chronotype is
associated with depression and depressive symptoms, but prospective data are lacking …

Background: Depressive and manic episodes within bipolar disorder (BD) and major
depressive disorder (MDD) involve altered mood, sleep, and activity, alongside …

Attention deficit hyperactivity disorder (ADHD) is a common neuropsychiatric condition that
has been strongly associated with changes in sleep and circadian rhythms. Circadian …

In humans, there is an endogenous, near 24-h (ie, circadian) variation in mood with the best
mood occurring during the circadian day and the worst mood occurring during the circadian …

Background: Depression is a major global cause of morbidity, an economic burden, and the
greatest health challenge leading to chronic disability. Mobile monitoring of mental …

Evening chronotype, a correlate of delayed circadian rhythms, is associated with
depression. Altered positive affect (PA) rhythms may mediate the association between …

Depression is a prevalent mental disorder. Current clinical and self-reported assessment
methods of depression are laborious and incur recall bias. Their sporadic nature often …

Posttraumatic stress disorder (PTSD) and insomnia are characterized by sleep disturbances
and daytime functional impairments. Actigraphy metrics can quantify diurnal rhythms via …

BACKGROUND: Depression has been associated with several circadian rhythm
perturbations, suggesting a disruption of the circadian clock system in affective disorders …