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Experts explain how buying the right light therapy lamp — and using it correctly — may make a difference this winter.
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.
The history of light therapy can be traced back to ancient Egypt and India, where therapy with natural sunlight was first used to treat leucoderma. [3] In the 1850s, Florence Nightingale's advocacy of exposure to clean air and sunlight for health restoration also contributed to the initial development of light therapy for treatments. [4]
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 ...
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 ...
Artificial sunlight is useful in treating and preventing seasonal affective disorder (also known as winter depression, which causes depression symptoms specifically in winter), [3] and delayed sleep phase syndrome, in which the circadian rhythm (the rhythmic alternation between daylight and nighttime behavior and bodily states) is disturbed and the person falls asleep much later than he or she ...
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