Background: It is unclear whether there is an association between chronotype and
nonremission of depression, and whether the association is related to the confounding effect …

Background Expanding our understanding of the factors that influence depression is crucial
for prognosis and treatment. In light of increasing evidence of an association between …

Background Chronotype and insomnia have been related to the development and to an
unfavourable course of depression. However, the mutual relationship of both risk factors is …

BACKGROUND: Rhythm disturbances are a frequent clinical manifestation of depression. In
recent years a possible relationship between depression and chronotypes has emerged …

Patients with depression often suffer from sleep disorders and non-sleep circadian
disorders. However, whether they precede and predict subsequent depression is unclear …

Highlights•Most studies measure morningness/eveningness preference rather than
'chronotype'.•Few longitudinal studies exist, and show contrasting results for the direction of …

Background The chronotype, being a morning or an evening type, can influence an
individual's psychological health. Studies have shown a link between depressed mood and …

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 …

Eveningness, a preference for later sleep and rise times, has been associated with a
number of negative outcomes in terms of both physical and mental health. A large body of …

The complaint of excessive daytime sleepiness (EDS), commonly encountered in clinical
practice, may arise from a variety of psychiatric disorders, most importantly depression. Even …