Cancer patients, including those with ovarian cancer, report sleep disturbances at a higher rate than the general population. A significant proportion of cancer survivors (23% to 44%) experience insomnia even years after treatment.
.
Sleep disturbances are associated with fatigue and are considered part of the cancer symptom cluster, which also includes cognitive impairment and depressive mood, and greatly reduces quality of life.
.
Pharmacologic and non-pharmacologic interventions, including exercise and cognitive-behavior therapy, have shown only modest benefits in the treatment of cancer-related fatigue.
.
Researchers evaluated the effectiveness of systematic light exposure, which had shown positive effects in breast cancer patients undergoing chemotherapy. Results showed that bright light therapy improved mean sleep efficiency – the ratio of time spent asleep compared to the total time spent in bed – to clinically normal levels.
.
This improvement was observed even three weeks after the intervention. In comparison, participants exposed to the dim light did not experience benefits in sleep efficiency.
.
The study, The Effect of Systematic Light Exposure on Sleep in a Mixed Group of Fatigued Cancer Survivorsappeared in the Journal of Clinical Sleep Medicine.
.

SUNSHINE OUTDOORS / SOLSHINE INDOORS