Are you suffering from fatigue? Try one of our light therapy products. Northern Lights products work by offering light treatment to combat these symptoms. The circadian rhythm, our bodies' 24 hour cycle, is affected by a sleep inducing hormone that is reduced when we are exposed to bright light. With just 15-20 minutes of daily exposure by sitting near the lamps in the mornings, the light treatment can help reduce the symptoms common with SAD and seasonal depression.