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Seasonal Affective Light Therapy
Seasonal affective light therapy uses a bright morning lamp in darker months to support mood and circadian timing. Proper distance, timing, and outdoor light still matter.
Seasonal affective light therapy uses a bright 10,000-lux lamp for roughly twenty to thirty minutes in the morning during short winter days to support mood and circadian timing. Distance and timing matter—eyes open but not staring at the bulb.
It complements outdoor walks, not replaces clinical care for depression.
Common questions
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When should you use a SAD lamp?
Most people use it within an hour of waking for twenty to thirty minutes in fall and winter. Stop if you feel jittery or sleep shifts later—adjust distance or duration.
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Can light therapy delay sleep?
Evening use can push sleep later. Keep therapy to morning unless a clinician directs otherwise.
Related terms
Put Seasonal Affective Light Therapy into practice
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