Bright Light Therapy

Bright light therapy – also called light therapy or phototherapy – is sometimes used to treat seasonal affective disorder (SAD) – a type of depression that occurs at a certain time each year, usually in the fall or winter.

During treatment, you sit or work near a light therapy box. The box gives off bright light that is similar to natural outdoor light.

Light therapy is believed to work by affecting brain chemicals that are linked to mood and sleep. Using a light therapy box may also help with other types of depression, sleep disorders and other conditions.

Technologies for Bright Light Therapy

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What to Expect for Bright Light Therapy

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Side Effects and Risk Factors for Bright Light Therapy

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Education and Resources for Bright Light Therapy

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Learn More about Bright Light Therapy

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