December is the season of light in many ways. The Christmas star and “the coming of the Light” for Christians, and the Menorah for Jews who celebrate the Feast of Lights, are familiar parts of our celebrations. The winter solstice, the longest night, is just days away and will usher in winter.
I hear a lot of comments from folks who dislike getting up in the dark and driving home from work in the dark. Did you know that for some of us, this lack of light exposure has a real effect on our mental health? This goes beyond not liking snow and cold, or short days for that matter. The lack of light actually results in Seasonal Affective Disorder, or SAD for a significant part of the population.
It took years for me to figure out that I am one of those affected people. I knew I didn’t like winter, although I couldn’t say that it was snow or even the cold that bothered me. As it turns out, it really is a depression complete with symptoms that accompany a clinical depression that has been triggered by other causes such as long term stress.
Lack of energy, “brain fog” (my term for a sort of dull, slow cognitive function), sleep and appetite changes (carbohydrate craving anyone?), blue mood, feelings of helplessness and hopelessness, and lack of sex drive often are common. A high percentage of people with chronic insomnia are depressed.
These symptoms may appear as early as late September and last until sometime in March, when the days are long enough to give us adequate light exposure. SAD may be treated as any depression, with an increase in exercise and possibly even medication. But the easiest, most effective and least invasive way to solve the problem is with light therapy.
This requires full spectrum light, just as the sun has. Incandescent lighting that is typical for home use won’t work because they lack the full spectrum. Placing full spectrum bulbs on the ceiling in place of fluorescent lighting is also not effective because it it too far from the eyes to work.
The source of the light must be close enough to pass through the retina of the eye, which means your face should be about 12-18 inches from the source of the light. The best way to do this is with a light box which was made for just this purpose. There may be an advantage to having the light above the center of vision, at an angle, as a desk light might be. You may read or write while you use the light, preferably for 30 minutes in the morning.
Research has shown that light therapy is highly effective for folks suffering from SAD. Some will find an added benefit to taking Vitamin B-12. It is not recommended that you use the light late in the day or you may have trouble sleeping.
The best resource for high quality light boxes is http://www.sunbox.com/ which is recognized by the National Institutes of Health. They partnered with NIH in the research on the treatment of SAD, have been in business for 25 years. I have been using one of their light boxes for over 6 years, and have recommended them to many of my clients. If you contact them, you will find their customer service to be excellent, and they provide a money back guarantee on their products.
If you are feeling tired, glum and having trouble concentrating, using light therapy may be a solution. I highly recommend it, and am happy to read your comments or questions.

