Trim tree branches that block sunlight. Walk outdoors on sunny days, even during winter. If possible, take winter vacations in a sunny, warm location. Experiment with sleeping less and eating fewer carbohydrates. Learn ways to manage stress.
Light therapy is currently the treatment of choice.
This involves exposing you to special lamps that are 10 to 20 times brighter than ordinary indoor lights. Light therapy may be most effective when administered as the first thing upon waking up in the morning. The mechanism by which light therapy works is not fully explained, and it's also clear that light therapy doesn't work for everyone. Although light therapy is widely used for SAD, other treatment options include antidepressant medications and counseling. Discuss treatment options with your physician or mental health professional.