An Ideal Marriage: Basic and Clinical Research in Chronobiology

Researchers studying single-cell blue-green algae or zebra fish, fruit flies or hamsters, often write at the bottom of their grant applications that, “Understanding basic...

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 box is now established as...

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...

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...
sunny morning environmental therapeutics

How does light work?

Light is a powerful antidepressant and is also the most powerful known zeitgeber (time-setter) for the internal biological clocks of the body. Surprisingly,...

Bright Light Therapy for Perinatal Depression

Perinatal depression is a type of depression experienced around, during, or shortly after pregnancy. It can affect any woman during any pregnancy or phase...

Letter to My “Quarterly Club” Patients

I write this on August 1,  2020.  August 1st is a date celebrated by the ancients, as Lammas, or the harvest holiday, when the...

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...

Light Therapy Provides Major Improvement in Parkinson’s Disease

Parkinson’s disease (PD) presents as problematic when developing effective treatments.  In discovering that dopamine was deficient in post-mortem brains of PD patients, one would...

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...

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