Summary
Light therapy can help people affected by Seasonal Affective Disorder (SAD), a type of depression that occurs in the winter months. Using a light box emitting 10,000 lux of light for about 30 minutes each morning is recommended to improve mood and adjust the body's internal clock. Some studies suggest that light therapy can be as effective as antidepressants.
Key Facts
- Seasonal Affective Disorder affects about 1 in 20 adults and more experience milder winter blues.
- Light therapy can help reverse symptoms of seasonal depression.
- A light box should emit 10,000 lux of light for maximum effectiveness.
- People typically use the light box for 30 minutes every morning.
- Research shows light therapy can work as well as some medications.
- Light therapy is most effective when started in the fall and continued throughout winter.
- Our body clocks rely on light to regulate sleep-wake patterns, which light therapy helps adjust.
