Does light therapy actually work?
Written by
Thomas Wilson
Reviewed by
Prof. Benjamin Murphy, Ph.D.Light therapy triggers biological changes in your body through the use of mood lighting. It regulates the hormones in your mood and the activity of your skin cells. Used to treat seasonal depression, light therapy eliminates the hassle associated with visiting an artificial sunlight booth, providing naturally occurring light patterns in the comfort of your own home. You may notice a real difference if you schedule just a few minutes every day to indulge.
Scientific research supports the effectiveness of light therapy. Measurable effects exist for seasonal affective disorder and acne treatment. Correct device choice is crucial. You require specific intensities such as 10,000 lux for mood regulation. Blue light, with a wavelength of 415-455 nm, is most effective on the skin.
Timing and position are important: Exposure to a light source in the morning helps your circadian rhythm, Position your eyes around 16-24 inches from the device at eye level. You should open your eyes without stargazing at the light; be consistent rather than sporadically long.
Safety Precautions: You must avoid using devices that emit UV light unless your doctor has approved them. If you have a serious eye condition such as glaucoma, consult a doctor. Certain medications increase the risk of side effects from exposure to bright lights. Stop using this treatment immediately if headaches or a change in vision occurs.
Device Selection
- Choose FDA-cleared units matching your specific health condition
- Verify wavelength specifications and intensity levels
- Avoid uncertified devices with unclear safety features
Usage Protocol
- Morning sessions within first waking hour for circadian benefits
- Consistent daily treatment for 2-4 weeks minimum
- Combine with routine activities like breakfast for compliance
Safety Measures
- Consult doctors before use with existing medical conditions
- Protect eyes with indirect viewing during sessions
- Discontinue if experiencing nausea or visual disturbances
Realistic Expectations: Most users see a difference in their mood, within a few weeks of consistent use (2-4 weeks). Skin conditions often get improvements that are visible in a shorter time frame. Relief from pain requires regular applications of oil to the areas of pain. You need to be patient to see the best results in your health, and technique matters.
Read the full article: Light Therapy: Benefits, Types, and Uses
