This review appraises the process of development and the measurement properties of the
Pittsburgh sleep quality index (PSQI), gauging its potential as a screening tool for sleep …

Insomnia is prevalent, causing severe distress and impairment. This review focuses on
illuminating the puzzling finding that many insomnia patients misperceive their sleep. They …

Problems with sleep affect a large part of the general population, with more than half of all
people in the United States reporting difficulties with sleep or insufficient sleep at various …

Objectives. To evaluate the effectiveness of Baduanjin Qigong exercise on sleep, fatigue,
anxiety, and depressive symptoms in chronic fatigue syndrome‐(CFS‐) like illness and to …

Good sleep quality is important for good health, both physical and mental, and indeed for
quality of life, performance and productivity. Sleep problems increase with age in both …

Fatigue is such a multifaceted construct it has sprouted specific research fields and experts
in domains as different as exercise physiology, cognitive psychology, human factors and …

Fatigue is defined as a condition or phenomenon of decreased ability and efficiency of
mental and/or physical activities, caused by excessive mental or physical activities …

Objective Poor sleep quality has been linked to inflammatory processes and worse disease
outcomes in the context of many chronic illnesses, but less is known in conditions such as …

Patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) often report
disrupted and unrefreshing sleep in association with worsened fatigue symptoms. However …

Parasympathetic function is important in the induction and maintenance of sleep. We
examined whether nocturnal vagal modulation of heart rate is related to the poor sleep …