Before I got into IT in the late 90's (I was 19-20 yrs), I had various construction work to tide me over. Like climbing a 4 metre ladder onto a roof with 40KG rolls of pitch, or setting rebar (the metal reinforcement for concrete) in -5C in the early morning, so when it heats up later the concrete can be poured. Just a couple of many stories where a slip was life or work ending - or being so bone cold you couldn't think.
Talking to the older guys left me with only one opinion, get out of construction.
A guy I know still from back then was cutting through a floor with a circular saw and went through the main electricity line into the building. The line wasn't on the plans... He lived by some amazing luck, but there was a very big bang.
Worked as a cattle vet for 8 months. I couldn't watch a movie anymore, always fell asleep. Being outside, lifting calves, the cuts and crushed toes, it was all too tiring. Maybe I didn't do it long enough.
I still work duty shifts from time to time. Eventually you hurt yourself (needles, bites, scratches, lifting animals, ...), it's just part of the job. But it's annoying, and exhausting to always (try to) be cautious and focused.
I can't think of any job that uses body functions and/or tools and is completely safe long term.
Now I feel physically fresh after my office job, and then bike everyday straight through the fields to go ride my horse. Impossible with my previous job, as I was already burned by it. I've reached a sane equilibrium : office job and 2-3 hours physical activity per day. And I definitely felt that a "field" job was draining me enough to affect my personal life.