Hmm.
Honestly John Rys Davies, based solely on Dominic Monaghan's description of him ordering dinner when filming Lord of the Rings.
"John Rhys-Davies… took us to a restaurant. And it was when we’d only just started to get to know John. And we sat down at this huge, long table, and he said, “I think I will order the food for tonight.” And we said, “Oh, ok, on you go John.” And you know, we were having a conversation, and the waitress came over, and John ordered food that would probably have fed 35, maybe 40 people. And there were about 12 of us. And he just said, “We’ll have nine lobster and 15 shrimp, and 12 red snapper, 15 filet mignons, and some grilled mushrooms. I’ll have 12 onions and a wild boar…” You know? All this kind of stuff - just like, “Pheasants, and grouse, and - do you have partridge? Bring the partridge.”
I ride an electric bike instead of driving, gentle exercise but I'm sure it makes a difference. Pokemon go walks, yoga 4x a week at a group class, weightlifting less than once a week. Yardwork too, hauling things around. I got running shoes but have not deployed them yet, I'd like to run once a week only. I do move around a lot. I read somewhere that if you wanted to be fit after you are 50 you really need to exercise 3 hours a day, and it seems true. Not like lifting for 3 hours every day but if I was retired I'd do cardio every morning, lifting every noon, yoga every evening except one day totally off everything each week.
Also, keep a glass of water at your desk. Get up to fill it, drink, get up to pee, repeat. So that you aren't sitting for too long.