In addition to losing weight it's gotten me back outside again. In my teens I practically lived outside; my 20s-40s not so much. My wife isn't too keen on some of the changes -- like the fact that I just can't sit still any more. She's been a good sport, though -- she's going camping with me this weekend despite being what she'd describe as an "indoorsy" type.

Don't know if this is weight loss, exercise, or meds, but for the first time in decades I am not suffering from insomnia. That alone would make it all worthwhile, even if I did really enjoy what I was doing.