I don't know about that Bozo.
I take meds for depression too and have for about 5 years. They have made a huge difference in my life and I will always continue to take meds. They don't help me to stay 'up' all the time, I still have to do a lot of work. I think the difference is, that when I have a 'down' time, I know it will end and I'll move on. Without the meds, I truly believed there would be no way up from the depths of depression. But, I still have to work on being positive every day.
I know what you mean about the change in seasons. I live in Canada and winter is very long here. This talks about seasonsal depression and how to treat it.
http://72.14.207.104/search?q=cache:...&hl=en&start=2