That's a good question, but it's very difficult to tease out. In truth, I haven't looked at the data on rates that could distinguish between those two conditions. We know that for many people, particularly in certain parts of the country where there is far less sunlight, the winter months are much more difficult. We know that for these winter months in particular the rates are far higher than before, but it is difficult to distinguish how much of that is related to SAD and how much of that is related to the pandemic. Realistically, compared with last year, given other conditions being the same, the rates are much higher in relation to the pandemic.
It's of less importance to tease out what the causation is than it is to recognize that the rates are higher, identify those most in need of treatment of severe depression, whether it's SAD or otherwise, and connect them with the appropriate resources—and not only counselling. Again, we need to go beyond counselling. When you get to the point of meeting criteria for certain conditions, you need more specific evidence-based therapies, including, potentially, a SAD light for some people, evidence-based psychotherapies, measurement-based care and, again, sometimes medications. That requires that human resources be available for those people to access.