It is theorized that people with SAD have difficulty in regulating serotonin levels during the winter and that their craving for carbohydrates is a way of compensating. However, the cornerstone of treatment for SAD is light therapy. Although the original light box . The standard for professionally made light boxes seems to be full-spectrum nonultraviolet fluorescent tubes because of their even disbursement of light and cool operating temperatures. A typical treatment strategy . . .
Exercise is also a critical element of treatment.
Dr. Rosenthal suggests taking a quick walk during lunch breaks. Even on overcast days, the sunlight filtering through the clouds is beneficial, so the walk accomplishes two treatment objectives. If the weather doesn't permit a walk, having lunch next to a window provides some exposure to light. In the evenings the patient can have another session in front of the light box, perhaps while eating dinner. . . . It's not necessary, or even recommended, to stare into the light.