Except that being lighter makes the exercise easier and also less of a load on the body – running is easier on the knees/joints, etc.
Yep, agree on that. But my point is by doing more exercise and eating more heatherly you will become lighter, just try not to become fixated on it- let the body adjust without becoming obsessed by lossing X amount of grams per day.
Just this week my wife commented on my more muscular calves (I’ve been upping the road miles this year), she didn’t say, “oh my, you look lighter” 😉
Cheers,
Jamie