Natural summer and winter sunlight exposure patterns in seasonal affective disorder

doi:10.1016/0031-9384(90)90199-E

Paper

Natural summer and winter sunlight exposure patterns in seasonal affective disorder

Published Nov 1, 1990 · C. Eastman

Physiology & Behavior

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Abstract

Abstract removed due to Elsevier request; this does not indicate any issues with the research. Click the full text link above to read the abstract and view the original source.

Observational Study

Study Snapshot

Key takeawayWinter seasonal affective disorder patients in the Chicago area experience more sunlight exposure in summer (3.0 h/day) than in winter (1.2 h/day), with a perceived skeleton photoperiod 4-5 hours longer in summer.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

Natural summer and winter sunlight exposure patterns in seasonal affective disorder

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