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I understand that only a small percentage of the population exhibits symptoms clinically significant...

Seasonal Affective Disorder

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

Sleep Phase Delay

Is it safe to use a sunbed when I’m pregnant?

Pregnancy

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

Seasonal Affective Disorder

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

Sleep Phase Delay

I’ve been using light therapy for SAD for about a month and have found...

Seasonal Affective Disorder

What is the impact of SAD on hormone levels, especially estrogens, prolactin, testosterone and...

Seasonal Affective Disorder

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

Sleep Phase Delay

I believe I have SAD as I know my body and mind respond favorably...

Seasonal Affective Disorder

Can children under the age of two suffer from SAD? I have a 20-month-old...

Seasonal Affective Disorder
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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.

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