Terry Crews of Brooklyn 99 gives the best advice on physical fitness.
Seriously, his Reddit AMAis the most genuinely upbeat, positive actor interview ever. Another great bit:
To be honest, this was the healthiest advice for getting into working out I’ve ever read, and it really was the inspiration for me to start running and going to the gym.
No judgement, no “you need to be doing this” mess. Just a simple “do what you can. and feel comfortable”
This is how I started. I don’t go to the gym, but I take a walk around my business park during my lunch break EVERY DAY (weather permitting). It started as a respite from my damned desk chair. Then I started planning podcasts to listen while I walk. Then I added some Pokémon go. Now, I walk at LEAST a mile a day, not including anything I happen to add outside of work. Sure, it’s not intense weightlifting, but it gets me moving.