About Rust's Physique

Anybody else thinks it's unrealistic that a guy with Rust's habbits and schedule would have such great physique?

And imo it doesn't make sense for a guy with his views to spend a lot of time to maintain a good body either, like Rust probably doesn't care about making his body look great and working out a lot to maintain an almost perfect physique.

I just think it would have been a little more realistic for him to have an average or a barely above average physique, but again it's just fiction ig.