As I discussed in my last post, Light Therapy is mainly used to help treat Seasonal Affective Disorder. During light therapy, you place a device called a light therapy box in the same room as you. Whether it be at work or at home, the light therapy box just has to be placed within close proximity of the individual. The box gives off a bright light that artificially mimics sunlight. Light therapy is thought to affect brain chemicals linked to mood, easing the symptoms of Seasonal Affective Disorder. Since this disorder tends to be present due to lack of sunlight in the winter, light therapy is able to somewhat replace that sunlight these individuals may be lacking. Using a light therapy box may also help with other types of depression, sleep disorders and other conditions. Light therapy is also known as bright light therapy or phototherapy.