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Center for Environmental Therapeutics
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Center for Environmental Therapeutics

Center for Environmental Therapeutics
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Sleep

How many hours a night of sleep does an adult need...

Sleep

For all of my adult life (I’m 40), my sleep/wake schedule...

Ask Our Experts

I have a problem with chronic insomnia. I tire later and...

Sleep

Why do I always wake up at 4 a.m. no matter...

Sleep

How can I determine the optimal number of hours of sleep...

Sleep & Light

Are there contact lenses available that perform the same function as...

Sleep Phase Delay

I am 34 years old and have a long history of...

Sleep Phase Delay

I am traveling to a time zone that is 12 hours...

Sleep Phase Delay

I have just been diagnosed with delayed sleep phase. My body...

Sleep Phase Delay

I suffer from delayed sleep phase syndrome (DSPS) and for years...

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Center for Environmental Therapeutics

Contact us at info@cet.org

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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