I believe it. While I was in university, my eyes strained a lot to the point where they'd start to tear uncontrollably for days on end, I'd get headaches and m

I believe it. While I was in university, my eyes strained a lot to the point where they'd start to tear uncontrollably for days on end, I'd get headaches and my vision literally got worse. But every summer I'd spend weeks on end outdoors, camping, hiking, etc... It got better, all the eye strain went away. My mother used to have 20/20 vision, until a decade into her career as an accountant (it could have been age, but eye problems aren't prevalent in her family). That's part of the reason I decided to do something outside of my degree path (that and the fact economics is depressing AF). I still enjoy computers, economics, all the things I studied, but working with my hands, stints in the outdoors, not staring at a screen makes me happier (and healthier).