This study aimed to evaluate the associations of nighttime sleep duration and midday
napping with risk of depressive symptoms incidence and persistence among middle-aged …

Methods N= 16,997 respondents (age range: 8-98y, mean age 39.7 y±13.1 SD; 43%
female) completed the 10-item Harvard Department of Psychiatry National Depression …

Objective: To investigate the relationships between sleep duration and depression among
middle-aged and older adults in China. Methods: This study used the data of 17,744 …

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

Background There are several studies that have focused on the relationship between sleep
duration and depression, however, only a few prospective studies have centered on the …

Background Results from longitudinal studies on sleep duration and incidence of
depression remain controversial. Methods PubMed and Web of Science updated on October …

Background Geriatric depression is a common but preventable psychiatric disorder;
however, its association with specific sleep patterns remains unclear. Therefore, we …

Objective To assess the independent and combined effects of night sleep duration and
sleep quality on depressive symptoms. Methods A total of 28,202 participants (11,236 males …

Background Ambulatory assessments offer opportunities to evaluate daily dynamics of sleep
and momentary affect using mobile technologies. This study examines day-to-day …

Background Insomnia is a risk factor for affective disorders. This study examined whether
individuals with insomnia symptoms early in the pandemic, either pre-existing or new-onset …