SAD Light Boxes: The Pros and Cons of This Seasonal Depression Treatment

 According to the National Institute of Mental Health, an estimated 5 percent of Americans suffer from this type of depression. One of the most popular treatments for SAD is light therapy, also known as phototherapy. Light therapy involves sitting in front of a special light box that emits bright light. This light is thought to regulate the body's internal clock and improve mood. But what does the research say? Are light boxes an effective treatment for seasonal depression? Let's take a look at the pros and cons.

The Pros of Light Therapy for Seasonal Depression

There's some evidence that light therapy can be an effective treatment for SAD. In one study, published in the American Journal of Psychiatry, researchers found that between 50 and 80 percent of people who used a light box reported significant improvements in their symptoms. 

Another study, published in JAMA Psychiatry, looked at the effectiveness of different types of light therapy and found that all were equally effective in treating SAD symptoms. The authors concluded that "light therapy is an efficacious first-line treatment" for seasonal depression. 

A third study, published in Biological Psychiatry, looked at the long-term effects of light therapy and found that it was an effective treatment not just for the short term but over the long haul as well. People who used a light box every day for two years reported significant improvements in their symptoms compared to those who didn't use a light box at all. 

So there's good evidence that light therapy can help ease the symptoms of seasonal depression. But there are also some potential drawbacks to consider.

The Cons of Light Therapy for Seasonal Depression

The Cons of Light Therapy for Seasonal Depression eye strain, headaches, and dizziness are all possible side effects of using a light box. In addition, people with certain medical conditions, such as diabetes or lupus, should not use light boxes without first talking to their doctor. 

Light boxes can also be expensive; a good quality one can cost anywhere from $100 to $200. And if you have insurance, it's unlikely to cover the cost since it's considered a non-essential item. 

Overall, there's good evidence that light therapy can be an effective treatment for seasonal depression—but it's not right for everyone. If you're considering using a light box this winter, talk to your provider first to see if it's right for you.