Probably not a good assumption. High stress job with your life on the line. Doesn’t mean you don’t do your job well, you just have a hard time with life sometimes. Same goes with the military.
Sounds like me. Played High School and college football, played racquetball for 30+ years (3 to 4 times a week til Covid happened). Now my knees are blown. Waiting on double total knee replacements. Can barely make it to the mail box.