Oh that's a shame. If he's still large he does need now more than ever to get fit because when you get to be my/his age the extra weight is a health hazard of greater and more immediate consequence.
My husband and I are trying to get into better shape because we've already had some problems. Him with blood pressure and me with skating on the edge of insulin resistance. I'm not overweight, but I am not toned so I look mushy. As you know from working out, those of us who stop after a youth spent building up solid muscles will look and feel "off" if we let that hard work get out of shape in later years. I know it hasn't happened to you yet but I'm sure you're aware of what lies ahead due to your interest in fitness. I don't need to work out like I used to but I can't afford to let myself become a potato, either. I lost some ground last year due to having to scale back activities drastically after some surgery. After I get caught up with some home repairs and finishing up the last of the remodeling I hope to get back into an age appropriate fitness regimen. By age appropriate, I mean something that won't stress older joints and tendons.
Sorry, I've dragged us all a bit off topic. Well I must say I've admired what Jony I've has done for Apple hardware design. I think he took some concepts too far, but overall, he was very influential abd iconic and deserves credit for that. I wish him well. I do think it is time for a new generation to make their impact now. I would like to see more practicality married to aesthetics than is currently practiced.