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The most popular forms are red light and blue light, and both are also used by dermatologists in phototherapy to treat conditions such as acne. “Blue light penetrates about a millimeter into ...
Red light therapy is a type of phototherapy that uses low levels of red light to trigger blood flow and energize cells, which can have healing properties, explains Billy Huh, M.D., Ph.D., a ...
[31] A 2008 systematic review concluded that "overall, bright light therapy is an excellent candidate for inclusion into the therapeutic inventory available for the treatment of nonseasonal depression today, as adjuvant therapy to antidepressant medication, or eventually as stand-alone treatment for specific subgroups of depressed patients."
LLLT has been studied as a treatment for hair loss; a review in 2012 found little evidence to support the use of lasers to treat hair loss. [67] A 2014 review found tentative evidence for benefit for lasers, [68] while another 2014 review concluded that the results were mixed, had a high risk of bias, and that its effectiveness was unclear. [69]
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 ...
Bright light therapy, commonly referred to as phototherapy, has been documented in multiple studies [4] [5] to be an effective treatment of SAD. [6] A study completed in 2009 revealed that as little as twenty minutes of light exposure can improve the mood of those with SAD. [7]
UV-B treatments for skin conditions such as psoriasis, vitiligo, and atopic dermatitis are administered in very low doses, often lasting only a few minutes or less than a minute when using lamps emitting 290-300 nanometer light. This low dosage does not significantly increase the risk of skin cancer, making UV-B phototherapy a safe treatment ...
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