Sleep disturbance is the most prominent symptom in depressive patients and was formerly
regarded as a main secondary manifestation of depression. However, many longitudinal …

Signs of mental ill health that cut across psychiatric diagnostic categories at high rates are
typically viewed as non-specific occurrences, downgraded in importance and disregarded …

Sleep disturbances and depression are closely linked and share a bidirectional relationship.
These interconnections can inform the pathophysiology underlying each condition. Insomnia …

Major mood syndromes are among the most common and disabling mental disorders.
However, a lack of clear delineation of their underlying pathophysiological mechanisms is a …

Highlights•Alcohol use is linked to disruption of architecture of electrophysiologic sleep.•It
has been affiliated with insomnia, short sleep and circadian abnormalities.•Alcohol can …

During the last decade quantitative and molecular genetic research on sleep has increased
considerably. New behavioural genetics techniques have marked a new era for sleep …

Background Perinatal depression is a global mental health problem. Studies have
suggested that perinatal depression is related to poor sleep quality during pregnancy …

Insomnia is a worldwide problem with substantial deleterious health effects. Twin studies
have shown a heritable basis for various sleep-related traits, including insomnia, but robust …

Twin studies have shown that a substantial proportion of the variance for sleep variables is
due to genetic factors. However, there is still considerable heterogeneity among research …

Introduction Fragmented REM sleep may impede overnight resolution of distress and
increase depressive symptoms. Furthermore, both fragmented REM and depressive …