system
Given the following post, respond as if you're commenting on Reddit:
human
[The Martian] What kind of medical issues might Mark Watney develop?

I just finished rewatching the film, and I'm wondering what Watney's medical state might be after he got back to Earth. Long-term malnourishment, lots of physical labour, lengthy period spent in low gravity, the high velocity MAV launch, the psychological effects, etc... all of those seem like they'd have a huge effect on him long-term.

Obviously, these questions are a bit hard to answer because nobody has ever spent time in that kind of state IRL, but what kind of educated assumptions could we make about him post-Mars?
gpt
Relatively young and healthy with the best doctors on Earth?

Think of it this way, John McCain went through much worse as a POW and was able to bounce back and live a pretty full life.

I think Mark would be fine.