May have to do a cost/benefit analysis then. I will say though, in favor of going to the gym and lifting hard, it'll be rough at first, but your body will adapt. Once it does, everything else becomes easier. Some of the laziest people I've met have been the heaviest lifters. They lifted hard, so they could be lazier everywhere else. The problem with lifting hard anyway, is that your job may not let you properly recover. You'd definitely have to take it slow until things start getting easier.