Joe, like you me and DT have no guarantee of tomorrow or even the rest of the day. Imo, that makes life precious. It's fragile.
Afa Trump's physical condition. C'mon he's against exercise, eats junk food, is overweight --and not in the Sammo Hung way. The claim that he travels all over the world, etc., is funny because he's famous for using "executive time" to watch tv. That doesn't make him bad, just not worth of propagandistic idolization (a la strongman Putin). There's no need to showing DT sitting on a Harley . That's all image making, but let's not take it seriously.
How about we make a rule that any president has to be able to run a mile, do 25 push ups, 50 sit ups, and 5 pull ups. Otoh, Franklin Roosevelt was crippled by polio, and died in office, yet he did ok while he was there. Kennedy couldn't stand for long periods --though he was able to lay quite well. He was assassinated. No guarantees.