I originally didn't think it would make much of a difference. I just figured that sunlight and nature would have very little (if any) effect. However, after actually doing it, and seeing such a huge shift in schedule, I realized the importance of sunlight a LOT more.

I didn't see the article you're referring to (can't seem to find it), but I'll try taking a morning walk as well. Sounds like a peaceful way to start the day.