Seasonal affective disorder is a form of ... it for 30-60 minutes daily to improve your mood and decrease SAD symptoms. Light boxes aren’t regulated by the Food and Drug Administration and ...
The National Institutes of Mental Health notes that shifts in mood and behavior that align with changes in the seasons could be indicative of seasonal affective disorder, also known as SAD.
The effects of transcranially administered light are unlikely to be mediated ... and anxiety symptoms in patients suffering from SAD in a randomized, double-blind dose-response study design.