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Best Time of Day for Light Therapy

Light therapy is typically best used early in the morning within the first 30-60 minutes after waking. Most individuals suffering from seasonal affective disorder also experience sleep phase disorders and have a difficult time waking in the morning. The use of light therapy upon waking in the morning helps to regulate circadian rhythms and melatonin/serotonin levels believed to be responsible for seasonal disorders. Avoid exposure to bright light and light therapy late in the day and evenings to prevent difficulties in going to sleep at night.

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