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Chronic Conditions and Diseases

Article Abstracts
Apr 04, 2020

Chronic Conditions and Diseases

JAMA: Light Therapy Improves Sleep for Parkinson’s Disease Patients

Article Abstracts
Jul 18, 2025

Many people with Parkinson’s disease have trouble falling asleep and staying asleep at night and as a result, have excessive daytime sleepiness that affects their quality of life. Treatments to date have been disappointing. A randomized, placebo-controlled, clinical intervention study, the results of which were published in JAMA Neurology, found that carefully timed exposure to bright light improved sleep quality. It may help people with Parkinson’s disease to maintain a healthy sleep-wake cycle and could help people to sleep better at night and increase alertness during the day, both of which improve a person’s quality of life. Overall, the study concluded that light therapy may be a feasible intervention and further studies are required to determine the optimal parameters for light therapy.

REFERENCES

Videnovic A, Klerman EB, Wang W, et al. (2017). Timed Light Therapy for Sleep and Daytime Sleepiness Associated With Parkinson Disease: A Randomized Clinical Trial. JAMA Neurology 10.1001/jamaneurol.2016.5192 http://dx.doi.org/10.1001/jamaneurol.2016.5192

Högl B. Circadian Rhythms and Chronotherapeutics—Underappreciated Approach to Improving Sleep and Wakefulness in Parkinson Disease. JAMA Neurology, February 20, 2017 10.1001/jamaneurol.2016.5519 http://dx.doi.org/10.1001/jamaneurol.2016.5519

 

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