Defining the relationship between sleep disturbances and psychiatric disorders is a thought–
provoking task and is becoming even more challenging because it is apparent that insomnia …

Highlights•Insomnia occurs prior to and represents a risk factor for new onset
depression.•Insomnia often persists following the successful treatment of …

Longitudinal studies observed that individuals suffering from insomnia disorder have a
higher vulnerability to develop symptoms of psychopathology compared with good sleepers …

Objective Depression and insomnia are closely linked, yet our understanding of their
prospective relationships remains limited. The aim of the current study was to investigate the …

Insomnia has a number of clinically significant associations. In particular, patients with
chronic insomnia have higher rates of psychiatric and medical illnesses, and insomnia is an …

Insomnia is a clinical problem of significant public health importance. Insomnia can be a
symptom or harbinger of other psychiatric disorders. Insomnia can also be comorbid with …

Disturbances of sleep are typical for most depressed patients and belong to the core
symptoms of the disorder. Since the 1960s polysomnographic sleep research has …

Background Observational studies suggest that insomnia might be associated with an
increased risk of depression with inconsistent results. This study aimed at conducting a meta …

Background: Chronic insomnia afflicts approximately 5–10% of the adult population in
Western industrialized countries. Insomnia may be secondary, ie triggered and/or …

The majority of individuals with depression experience sleep disturbances. Depression is
also over-represented among populations with a variety of sleep disorders. Although sleep …