Lack of exposure to light in dark winter months can lead to Seasonal Affective Disorder (seasonal depression or SAD). SAD is a mental health disorder that includes side effects such as fatigue, hopelessness, sleep disorders, and social withdrawal. A seasonal depression lamp helps treat seasonal affective disorder with white light therapy which exposes the user to high light intensity. Bright light therapy is a proven method to aid in reducing seasonal depression during winter months. Carex offers light therapy lamps including models with 10,000 lux and LED bulbs. Consult your doctor about bright light treatment to see if it's right for you.