From Wai Wong, Melbourne, Australia
In Graham Lawton’s article on red-light therapy, many small-scale studies found red light helpful in treating various ailments, but large-scale trials are wanting. However, even if some of the forthcoming trials show its effectiveness, red-light therapy may not be the best option for many, because we already have a natural alternative in sunlight. Sunlight has been shown to achieve many of red light’s purported benefits in alleviating insomnia, depression, psoriasis, osteoarthritis and some other autoimmune diseases (9 May, p 40).
