Age-related changes in sleep and circadian regulation occur as early as the middle years of
life. Research also suggests that sleep and circadian rhythms are regulated differently …

Impaired upper airway anatomy is the main cause of obstructive sleep apnea (OSA).
However, there are other important non-anatomical contributors or “endotypes” including …

Background Insomnia is a common health problem, and most people who seek help for
insomnia consult primary care. In primary care, insomnia treatment typically consists of …

Objective We investigated the longitudinal impacts of insomnia on the subsequent
developments of anxiety and depression during a four-year follow-up. We further …

Purpose: Insomnia affects up to one in four adolescents and has been shown to have a
negative impact on their mental and physical health. This study aimed to investigate the …

This longitudinal study aimed to investigate the prevalence of newly-started drinkers and
their continuing drinking behaviors after the Great East Japan earthquake. Moreover, the …

Background Although insomnia is a very common disorder, few people seek medical help.
Objectives To determine the proportion of people who consult a healthcare professional …

Acute sleep deprivation can lead to judgement errors and thereby increases the risk of
accidents, possibly due to an impaired working memory. However, whether the adverse …

Study Objectives: Child sexual abuse is associated with negative consequences on both
physical and mental health. It has been found to influence child and adolescent sleep, which …

Background People typically seek primary health care for daytime symptoms and
impairments they experience in association with their insomnia. However, few studies …