How does light work?
By Dan Oren MD Department of Psychiatry, Yale School of Medicine
Dan Oren received the MD degree from the Yale School of Medicine, where...
Advertising and writing about light therapy in the media: why are the eyes nearly always closed?
In five minutes of web-browsing for a light therapy lamp, a motif repeats itself — beautiful models (nearly always women) with closed eyes, swooning...
Light Therapy: Its Discovery and Applications
How it all began...
Light therapy is one of the most exciting and scientifically interesting developments in medicine today. First, it is one of the...
Light Therapy Provides Major Improvement in Parkinson’s Disease
by Gregory L. Willis
The Bronowski Institute of Behavioural Neuroscience, Melbourne, Australia
Gregory L. Willis PhD is Director of the Bronowski Clinic and the Bronowski Institute...
An Ideal Marriage: Basic and Clinical Research in Chronobiology
by Anna Wirz-Justice
Centre for Chronobiology, Psychiatric Clinic, University of Basel, Switzerland
Anna Wirz-Justice PhD, Professor emeritus, is a founding member of the Society for Light Treatment...
How to Select a Light Box
In the best of all possible worlds, every light box on the market should have undergone clinical trials to show its efficacy, and should...
Letter to My “Quarterly Club” Patients
by Carla Hellekson, MD
Carla Hellekson MD was among the very first psychiatrists studying Seasonal Affective Disorder in the eighties, is a Charter member of...
CET’s Basic Guide to Light Therapy
Many individuals with depression are unwilling or unable to take medication or have found it ineffective. Bright light therapy is now established as a...
Seeking Treatment for Light Therapy, and Other Chronotherapy
CET does not recommend trying light therapy, or any other circadian rhythm treatment, without the supervision of a professional. Although side effects are rare,...
Bright Light Exposure Risks
Cautionary Notes About Bright Light Exposure
Light energy can interact with and damage skin and eye tissues, especially when a photosensitizing molecule—whether from a drug...
