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Why am I so tired in the morning during the winter months?

Light Therapy

How do I know if I am sensitive to the UV lights particularly with...

UV Light

How do the lights work?

Light Box

What is the difference between color temperature and the color rendering index (CRI)? Which...

Light Therapy

I am 50 years old and have struggled with insomnia for decades. I can...

Sleep

My 12-year-old son was diagnosed with SAD when he was about eight. He has...

Seasonal Affective Disorder

I work in our local cancer research center. A lovely man comes in who...

Light Box

What does happen if you use light too early? Once in a while? Regularly?

Light Therapy

Do you have any suggestions for someone who has suffered with summer depression for...

Depression

Is it OK to wear contact lenses while sitting in front of a light...

Light Box
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Contact us at info@cet.org

CET is an independent, non-profit professional organization dedicated to education and research on the new environmental therapies.
We offer a variety of services, including background information, self-assessment questionnaires, and environmental therapy products.

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