期刊
JOURNAL OF AFFECTIVE DISORDERS
卷 57, 期 1-3, 页码 55-61出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0165-0327(99)00063-4
关键词
mood; phototherapy; quality of life; seasons
Background: The relative shortage of light during the decreasing photoperiod may compromise well-being. Earlier studies suggest that bright-light exposure may be of help to alleviate winter-bound symptoms. Methods: We carried out a field study with exposure to bright light on office employees during winter. Results: Repeated bright-light exposure improved vitality and reduced depressive symptoms. The benefit was observed not only in healthy subjects with season-dependent symptoms but also in those not having the seasonal variation. Conclusions: Bright-light exposure during winter appears to be effective at improving the health-related quality of Life and alleviating distress in healthy subjects. Clinical implications: Administration of bright Light is a useful option to improve vitality and mood among subjects working indoors in wintertime. Limitations of study: Our field setting used self-reports, not interviews, for the assessment of outcome. (C) 2000 Elsevier Science B.V. All rights reserved.
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