OBJECTIVES To test whether individual differences in gratitude are related to sleep after controlling for neuroticism and other traits. To test whether pre-sleep cognitions are the mechanism underlying this relationship. METHOD A cross-sectional questionnaire study was conducted with a large (186 males, 215 females) community sample (ages=18-68 years, mean=24.89, S.D.=9.02), including 161 peo...

BACKGROUND The applicability of the Pittsburgh Sleep Quality Index (PSQI) in screening of insomnia is demonstrated in various populations. But, the tool has not been validated in a sample of Ethiopians. Therefore, this study aimed to assess its psychometric properties in community dwelling Ethiopian adults. MATERIAL AND METHODS Participants (n = 311, age = 25.5 ± 6.0 years and body mass index...

OBJECTIVE To evaluate and describe the sleep quality in seven subscales among the patients with mild traumatic brain injury (TBI) and compare it with normal patterns. METHODS This cross-sectional study was conducted within a 6-month period from February to August 2014 in Shahid Rajaei trauma center of Shiraz. Participants were selected randomly from all adult (18-60 years of age) patients adm...

BACKGROUND This study was conducted to determine what symptom components or conditions of insomnia are related to subjective feelings of insomnia, low health-related quality of life (HRQOL), or depression. METHOD Data from 7,027 Japanese adults obtained using an Internet-based questionnaire survey was analyzed to examine associations between demographic variables and each sleep difficulty sym...

Background: Smartphone addiction is an increasing problem among university students worldwide. Excessive smartphone use can lead to unfavorable outcomes such as social isolation and poor academic achievement. Assessing the utilization of smartphones at level extremely necessary. Objectives: The study aim was investigate prevalence medical assess its relationship with sleep quality. Methods: A c...

BACKGROUND Sleep problems are common in lung cancer survivors, yet little is known about the prevalence, determinants, and effects on quality of life (QoL) of these sleep problems in long-term lung cancer survivors. METHODS A case-control study design comparing 76 elderly lung cancer survivors (LCS, >5 years post diagnosis with mean survival time of 8 years+/-2.1 years) and 78 elderly non-can...

BACKGROUND Knowledge about sleep complaints of caregivers of patients with Alzheimer's disease (AD) and Parkinson's disease (PD) is limited, and we lack information about the relationship between caregivers' sleep problems and their quality of life (QoL). METHODS We evaluated subjective sleep quality and its relationship to QoL in a group of 80 caregivers of patients with AD (ADCG, n = 40) an...

OBJECTIVE Although psychostimulants have been shown to affect sleep in experimental studies, the relation between nonmedical psychostimulant use and sleep has not been examined. Our goal was to describe the sleep quality and characteristics of college students who use psychostimulant medications nonmedically. METHODS We surveyed 492 college students about their sleep quality and psychostimula...

Background Aging causes physiological changes which affect the quality of sleep. Supervised physical exercise is an important therapeutic resource to improve the sleep of the elderlies, however there is a low adherence to those type of programs, so it is necessary to implement an exercise program which is feasible and effective. The study aimed to test the hypothesis that a semi-supervised home...