A complete and concise primer on the causes and treatment of Seasonal Affective Disorder (S.A.D.). Written in consultation with experts in the medical field to describe the effective use of bright light therapy to relieve the depressive symptoms of Seasonal Affective Disorder. Also describes the use of light therapy to treat other medical problems such as sleep disorders and jet lag. Included is a discussion of the use of drugs, psychotherapy, diet, exercise and negative ion therapy in combination with light therapy.
