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Sleep efficiency improves after systematic morning bright light exposure — ScienceDaily


Results of a randomized managed trial recommend that systematic bright light exposure can enhance sleep for fatigued individuals who have been handled for most cancers.

The pilot research outcomes present that imply sleep efficiency, the share of time in mattress when the individual is sleeping, improved to clinically regular ranges within the bright light remedy group. This statistically vital enchancment was sustained three weeks after the intervention. In distinction, the dim light group remained at low sleep efficiency ranges on common for all the research. Medium to giant impact sizes additionally have been seen in self-reported sleep high quality, complete sleep time and wake time.

“In a pilot study, a systematic light exposure intervention with a mixed group of fatigued cancer survivors was significantly more effective than comparison dim light exposure in improving sleep efficiency,” stated lead writer Lisa M. Wu, PhD, assistant professor within the Department of Medical Social Sciences at Northwestern University Feinberg School of Medicine and a member of the Robert H. Lurie Comprehensive Cancer Center at Northwestern University. Wu additionally serves as an adjunct assistant professor within the Department of Population Health Sciences and Policy at Icahn School of Medicine at Mount Sinai in New York City, the place the research was carried out.

The research outcomes are revealed within the Jan. 15 situation of the Journal of Clinical Sleep Medicine.

According to the authors, sleep disturbances are reported by most cancers sufferers at a considerably greater fee than within the common inhabitants. Between 23 and 44 % of most cancers sufferers expertise insomnia signs even years after remedy.

The analysis group, led by principal investigator William H. Redd, PhD, professor within the Department of Population Health Sciences and Policy at Icahn School of Medicine at Mount Sinai, studied 44 individuals who had accomplished remedy for most cancers and met standards for clinically vital fatigue at screening. Participants had a mean age of about 54 years, and 75 % have been ladies.

Participants have been randomized to both a bright white light intervention or a comparability dim light situation. They have been offered a light field and instructed to make use of it each morning for 30 minutes for 4 weeks. Sleep was evaluated utilizing wrist actigraphy and the Pittsburgh Sleep Quality Index.

“Systematic light exposure using bright white light is a low-cost and easily disseminated intervention that offers a feasible and potentially effective alternative to improve sleep in cancer survivors,” stated Wu.

The authors famous that larger-scale research are wanted to check the efficacy of systematic light exposure to deal with sleep disturbances in individuals who have been handled for most cancers.

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Materials offered by American Academy of Sleep Medicine. Note: Content could also be edited for fashion and size.



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