Maybe it's just that a lot of players RP their characters as being pilots who
think they're doing a good job of holding on to their humanity.
I know that's how I think about it. The reality is that Verin's as far gone as the rest, he's just in denial about it.
While I steer away from the commando-turned-capsuleer trope myself...
the funny thing is that I think that trope's entirely appropriate. Becoming a special forces troppers requires a soldier to pass a training regime that selects for an enormous degree of willpower and personal discipline, which are among the qualities required for a pod pilot.
This in turn probably means that a lot of pilots, provided they remain concerned about their "meat" bodies are almost certainly disciplined enough to eat healthily and exercise regularly. We're talking a very driven, very focused group of people here, who have a tendency to become obsessive. if they stay obsessive on keeping their bodies in good shape, then there's every reason to assume that capsuleers are generally quite fit and healthy. Especially given the kind of super-advanced medical technology they have access to.