Lindsay: I know that many people have been in the position where they don't have the cognitive and physical momentum to get themselves out into the world, even if they think it would be. So light therapy, you're saying may have some limited upside. What about from what little I've read? This sounds like maybe among the most promising treatments for sad,. which is cognitive behavioral therapy. Do you think it is useful for seasonal effective disorder? You know, I think cognitive behavioral therapy is useful for everything. It's just treatment through conversation.