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Center for Environmental Therapeutics
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The morningness-eveningness questionnaire (AutoMEQ) indicated my melatonin onset as 9:45 p.m. and my ideal...

Light Therapy

Would light therapy be effective for a person who is totally blind? Some people...

Light Therapy

My goals are to regularize my sleep-wake cycle and treat some mild but persistent...

Sleep

In the interest of saving money, what about making a light box with a...

Light Box

In the question on “the mechanism of action of the agitation side effect,” one...

Light Box

I bought CET’s recommended light box in early November and can’t even begin to...

Light Therapy

Most of the equipment referred to by your questioners, as well as that sold...

Light Therapy

In dawn/dusk simulation therapy, how important is the dusk simulation part? Also, can dusk...

Light Therapy

I have been suffering from chronic insomnia for several years. I have seen every...

Sleep

What is the correct way to measure the distance from the box, which determines...

Light Box
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Center for Environmental Therapeutics

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Founded in 1994, CET is an independent, non-profit professional organization dedicated to education and research on new environmental therapies.

We offer a variety of services, including background information, self-assessment questionnaires, and environmental therapy products.

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