SAD Light Therapy - An Extremely Powerful Technique To Treat SAD Using Sunlight
In ancient times, light or particularly sunlight combined with medicinal herbs was used to treat different skin diseases. This practice was common in countries like India and China. As time passed by, people realized the uncountable advantages of sun light and thus, light therapy or photo-therapy was born.
Light therapy mainly consists of exposure to sun light or to a specific wavelength of light using various light emitting devices like lasers, light emitting diodes (LED) or full spectrum light. The time duration for which the light is emitted is generally controlled and is for a certain duration .
Currently, photo-therapy is usually used to treat different skin diseases like acne, tanning and pigmentation. Photo-therapy also finds tremendous use in curing mood swings and Seasonal Affected Disorder (SAD). SAD is a mood disorder wherein people who are healthy throughout the year, feel depressed during the winters due to insufficient sun light year after year. It's normally known as winter blues or winter depression and is common in Nordic countries.
This happens since people do not get Vitamin D due to lack of sun light. The most effective strategy to treat SAD is by the use of SAD light therapy. Light therapy inhibits the production of melatonin, a sleep inducing hormone and supports the production of serotonin which results in a happy mood. Light therapy uses a light box which produces 10,000 lux of light i.e a lot more than that produced by a typical house bulb or a lamp.
UV rays cause substantial damage to human skin besides depletion of Vitamin A and C in our body. UV rays also cause free radical generation which leads to early aging and cause irritation in the eyes and damage the retina. Due to this fact UV rays are filtered out. Green and white light are the most efficient light therapy for SAD. There's a large variety of SAD light products to select from ranging from very large to very small ones depending upon the requirement.
Another minor solution is to have Vitamin D dietary supplements but this hasn't proven to be a very successful solution. Although light therapy has several benefits, there're also some negative effects related to light therapy. It causes jumpiness,headache and nausea. In many cases it may also cause skin rashes and eye irritation.
Thus, proper care needs to be taken while performing light therapy. Till date, light therapy is the best treatment for treating SAD and has a very bright future in the coming years. It will only get better and far more effective with time.
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