This! I feel it myself, my ADHD was much better when I stayed in a relatively natural setting with only little technology. for a few weeks (I did some programming there though, and boy was I focused in complex problems without medication etc. had one of my best coding sessions there I think). I'm pretty sure that a lot of ADHD but also other psychiatric issues like autism or social anxiety etc. that is diagnosed these days is because of all this unhealthy environment we have created. Or in other words, our modern technology promotes psychiatric issues such as ADHD, autism, social anxiety etc.