Light exposure is related to social and emotional functioning and to quality of life in older women

Michael A. Grandner, Daniel F. Kripke, Robert D. Langer

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

While there are data supporting the use of light in clinical populations, there has been less investigation of relationships among light and psychological variables in non-clinical samples. Subjects were 459 ethnically diverse women (mean age 67.68) recruited as part of the Women's Health Initiative. Light exposure and sleep were measured with an Actillume wrist actigraph. Subjects completed questionnaires, investigating Social Support, Social Functioning, Social Strain, Quality of Life, Satisfaction with Life, Emotional Well-being, Optimism, Negative Emotional Expressiveness, and Role Limitation Due to Emotional Problems. Significant partial correlations (controlling for age, education and ethnicity) were found between mesor light exposure and Social Functioning, Quality of Life, Satisfaction with Life, and Emotional Well-Being. Quality of Life and Satisfaction with Life were also found to be significantly correlated with morning light. The most parsimonious model to account for the variance shared between mesor light and the predictors included only Quality of Life. The variance shared between mesor light exposure and social and emotional functioning could be subsumed under the variance shared between mesor light exposure and Quality of Life. Increased light exposure is related to improved quality of life and social and emotional functioning.

Original languageEnglish (US)
Pages (from-to)35-42
Number of pages8
JournalPsychiatry research
Volume143
Issue number1
DOIs
StatePublished - Jun 30 2006
Externally publishedYes

Keywords

  • Circadian rhythm
  • Emotional disturbances
  • Interpersonal relations
  • Phototherapy
  • Sleep

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Biological Psychiatry

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