Quote Originally Posted by OakLeaf View Post
For me, it's the sunlight. There have been studies that document that sunlight is really important to metabolism (and most body systems). Until I became a snowbird, I always weight over the winter and lost it soon after the spring equinox, and back then all my workouts were indoors with no seasonal variation at all.
That's really interesting. I hadn't heard that before. Not much I can do to make more sun in winter (other than move south, which isn't happening).

I dunno, maybe it's just supposed to happen, and I should accept that I have winter jeans, summer jeans. Of course, the jeans that get too tight are the heavier weight ones that I'd prefer in cold weather.