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Practicing bright light therapy at home requires a light box that emits at least 10,000 lux, positioned about 16-24 inches from the face, says Nealon. There are plenty of affordable light boxes ...
Bright light therapy, widely understood to be an effective treatment for Seasonal Affective Disorder (SAD), can also be helpful in treating other types of depression, finds a new meta-analysis ...
Light therapy, also called phototherapy or bright light therapy is the exposure to direct sunlight or artificial light at controlled wavelengths in order to treat a variety of medical disorders, including seasonal affective disorder (SAD), circadian rhythm sleep-wake disorders, cancers, and skin wound infections.
Light therapy uses a lightbox, which emits far more lumens than a customary incandescent lamp. Bright white "full spectrum" light at 10,000 lux, blue light at a wavelength of 480 nm at 2,500 lux or green (actually cyan or blue-green [35]) light at a wavelength of 500 nm at 350 lux are used, with the first-mentioned historically preferred. [36] [37]
[27] [28] Rosenthal and his colleagues treated the patient with bright lights, which helped to successfully manage the depression. [3] [24] They conducted a formal follow-up study to confirm the success. The results were published in 1984, officially describing SAD and pioneering light therapy as an effective treatment method. [29]
The researchers found that people who were exposed to high amounts of light at night had a 30% increased risk of developing depression, along with a higher risk of psychosis, bipolar disorder ...
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