My father-in-law has had his health ruined to the point of having is commercial license revoked, from a multitude of largely immobility caused health issues(inc

My father-in-law has had his health ruined to the point of having is commercial license revoked, from a multitude of largely immobility caused health issues(including a blood clot that ran literally his entire lower leg). As a programmer/computer person, I do sit a lot, but not in conditions anywhere approaching his. I can stand up and stretch every 45 minutes, I have a standing desk, I can move around in my chair. Not to mention my chair is ridiculously comfortable compared to just about any car/truck seat I've sat in, including his work truck.