Light Therapy Research

Research into light therapy

Light therapy is becoming increasingly popular as an effective alternative to medication. Research into bright light therapy has found that not only is it highly effective when treating Seasonal Affective Disorder, but that is also beneficial for many other conditions also. It can help phase shift those whose circadian rhythms are out of time, reduce depression, help with eating disorders, reduce symptoms of Parkinson's Disease and Alzheimers, and new uses are being found regularly.

On this page you can find several articles about light therapy. Here is a fraction of the articles that have been published but we hope to add more regularly to make it into a comprehensive collection.

Please click on the area of research you want to find out more about, or simply scroll down the page.

  1. Seasonal Affective Dirsorder
  2. Shift Work
  3. Jet Lag
  4. Circadian Rhythm
  5. Elderly Patients
  6. Physiology
  7. Children
  8. Other

Seasonal Affective Disorder

Nov 20, 2007Quality of life as an outcome indicator in patients with SADPsychological Medicine
May 1, 2006A Randomized Controlled Trial of the Effectiveness of Light TherapyAmerican Journal of Psychiatry
June 1, 2004Decreasing TSH Levels in Patients with Seasonal Affective Disorder (SAD)Affect Disord 79, no. 1-3 (2004): 253-7
Sep 1, 2002A comparison of open treatment of seasonal major and minor depression with lightAffect Disord (2002)
Sep 1, 2001Early response to light therapy partially predicts longterm antidepressant effectsJ Psychiatry Neuroscience (2001)
Jan 1, 2000Effects of light therapy on suicidal ideation in patients with winter depressionClinical Psychiatry (2000)
Oct 1, 1998Morning vs evening light treatment of patients with winter depressionArch Gen Psychiatry (1998)
Jan 1, 1995Light Therapy for Seasonal Affective Disorder - The Effects of TimingBritish Journal of Psychiatry (1995)
Jan 1, 1993Early light treatment can prevent an emerging winter depression from emergingJournal of Affective Disorders (1993)

Shift Work

May 15, 2009Prospects of using light to aid night shift adjustmentReportership R3.28
June 24, 2001Bright Light Facilitates Circadian Adaption Among Night Workers at an Oil PlatformSupported in part by The Research Council of Norway
June 24, 2001Effects of Bright Light on Sleepiness, Sleep and Melatonin in Industrial Worksponsored by the Former Swedish Working Life Fund
Jan 1, 1990Exposure to Bright Light and Dark to Treat Physio Maladaption to Night WorkThe New England Journal of Medicine (1990)

Jet Lag

Jun 1, 2002Phase-Dependent Effect of Room Light Exposure: Implications for Jet LagJournal of Biological Rhythms (2002)
Jan 1, 2002Jet Lag: Minimizing its Effects with Critically Timed Bright Light & MelatoninJ. Mol. Micobiol. Biotechnol.

Circadian Rhythm

Nov 6, 2007Tick, Tock: Fat Disrupts the ClockScienceNOW Daily News
Sep 11, 2007Research underway for device to help people 'lighten up'Medical News Today

Elderly Patients

Jan 1, 2003Effect of light on agitation in institutionalized patients with severe AlzheimerAmerican Journal of Geriatric Psychiatry (2003)
Jan 1, 2002Effect of light on sleep and circadian rhythms in demented nursing home patientsJournal of the American Geriatric Society (2002)
Sep 10, 2001Diminished Melatonin Secretion in the Elderly Caused by Insufficient Environment IlluminationThe Journal of Clinical Endocrinology and Metabolism


Sep 1, 2003High sensitivity of human circ/mel rhythm to resetting by short wavelength lightJournal of Clinical Endocrinal Metabolism (2003)
Feb 11, 2003Phase advancing human circadian rhythms with short wavelength lightNeuroscience Letters (2003)
Jan 1, 2001Light emitting diodes can be used to phase delay the melatonin rhythmJournal of Pineal Research (2001)
Jan 1, 2001Action Spectrum for Melatonin Regulation in HumansThe Journal of Neuroscience (2001)
Jan 1, 1998The dark side of light treatment for seasonal affective disorderInternational Journal of Risk & Safety in Medicine (1998)


Dec 1, 2007Evolving applications of light therapySleep Medicine Reviews
Jan 1, 2002Children's time of day preference: age, gender and ethnic differencesPersonality and Individual Differences (2002)


Jun 1, 2004Randomized Clinical Trial of Bright Light Therapy for Antepartum DepressionJ Clin Psychiatry 65, no. 3 (2004): 421-5
Jan 1, 2003Phase advancing human circadian rhythms with short wavelength lightNeuroscience Letters (2003)
Jan 1, 2003Luteinizing hormone following light exposure in healthy young menNeuroscience Letters (2003)
Oct 1, 2002Bright light, dark and melatonin can promote circiadian adaptation in night shift workersSleep Medicine Reviews (2002)
Dec 1, 2001The relationship between fatigue and sleep in cancer patients: a reviewEuropean Journal of Cancer Care (England) (2001)