A body in motion tends to stay in motion. That couldn't be more true for our bodies! Regular exercise has been proven to maintain mobility and flexibility as you age. But, that old law of physics is also useful for talking about our ability to get things done: If you work hard all day, you are more likely to really tackle the next project you set for yourself, rather than give up.
Think about it this way: we have two mind-body states, excited/working hard, and calm/not working. Once you are in one, it is easy to stay in it. Switching between the two is hard.
Those of you who do Tai Chi or exercise every morning know this already. How much easier is focusing on your job after doing your morning routine?
Well, it works both ways. If you are struggling with committing to the exercise, not the work, then use your busy days at the job as motivation for your workouts. Don't plan workouts on days you don't have much to do. You'll have a much harder time getting off the couch. It's much more difficult to be motivated by the threat of worse health years in the future than by your boss firing you tomorrow. You'll try very hard at work, if you value your job, and that effort will carry over into completing your workout after.
Then, your "days off" can really be all about relaxation.
Have a great weekend everybody!