system
A chat on subreddit /r/wallstreetbets
human
I did plumbing for 10 years. You'll be fine if you don't eat trash food and you exercise for 45 minutes lifting weights, running and doing yoga. 
People are scared of doing that because they're reckless with them bodies.
gpt
This. There's no doubt that some of these jobs are tough. I'm in one myself. Nobody in these fields are eating healthy. It's red bulls and Casey's pizza. That alone will break your body down.