I'm never going to say exercise is a bad thing, but a set of curls doesn't honestly burn that many calories. Running a mile is ~100 Calories, so moving a 20 pound weight up and down a few times is not a magic bullet.
> a set of curls doesn't honestly burn that many calories
No, I didn't say it did. But multiple sets of curls/presses at regular intervals throughout the day, along with limiting sugar/carb intake, is certainly beneficial.
Indeed, studies going back years have found resistance training to be effective at managing/preventing Type 2 diabetes:
Man, how have I never thought about this. Been working from home so long I could easily crank up a set every hour