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SAD Light Therapy - An Extremely Effective Solution To Treat SAD Using Sunlight
In ancient times, light or particularly sunlight combined with medicinal herbs was used to treat several 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 therefore, light therapy or photo-therapy was developed.
Light therapy mainly consists of exposure to sun light or to a specific wavelength of light using different light emitting devices like lasers, light emitting diodes (LED) or full spectrum light. The time duration for which the light is emitted is usually controlled and is for a specific duration .
Today, photo-therapy is usually used to treat several skin diseases like acne, tanning and pigmentation. Photo-therapy also finds tremendous use in treating mood swings and Seasonal Affected Disorder (SAD). SAD is a mood disorder wherein people who're healthy throughout the year, feel depressed during the winters due to lack of sun light every year. It is generally called winter blues or winter depression and is common in Nordic countries.
This happens as people don't get Vitamin D due to lack of sun light. The most effective technique to treat SAD is by the use of SAD light therapy. Light therapy prevents the production of melatonin, a sleep inducing hormone and also supports the production of serotonin that leads to a happy mood. Light therapy makes use of a light box that produces 10,000 lux of light i.e much more than that produced by a typical house bulb or a lamp.
Ultraviolet rays cause substantial damage to human skin besides depletion of Vitamin A and C in our body. UV rays also cause free radical generation that leads to premature aging and cause irritation in the eyes and damage the retina. Because of this fact UV rays are filtered out. Green and white light are the most effective light therapy for SAD. There is a large variety of SAD light products to select from ranging from very large to very small ones depending upon the requirement.
Another solution is to have Vitamin D dietary supplements but this hasn't proven to be a very effective solution. Although light therapy has numerous benefits, there are also several side effects associated with light therapy. It causes jumpiness,headache and nausea. In many cases it may also cause skin rashes and eye irritation.
Therefore, proper care should to be taken while performing light therapy. Till date, light therapy is the most effective 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.