I don't necessarily mind all of that, save the sneaking around with tech when it seems a bit harsh.
We don't know which things are actually detrimental to brain function. If I were to speculate, I'm going to guess the differences lie in some combination of low-level stress and the actual effort involved.
The effort bit might explain more of the differences. Some folks have better genetics for long-distance running and can do so for much of their lives while others develop issues from overuse and/or become more prone to injuries. I'm hoping we sort some of this stuff out in the future as we get better ways to gain insight.
We don't know which things are actually detrimental to brain function. If I were to speculate, I'm going to guess the differences lie in some combination of low-level stress and the actual effort involved.
The effort bit might explain more of the differences. Some folks have better genetics for long-distance running and can do so for much of their lives while others develop issues from overuse and/or become more prone to injuries. I'm hoping we sort some of this stuff out in the future as we get better ways to gain insight.