What you described above with motorcycle riding, skiing, bouldering, etc are known as "peak experiences" and associated with "flow". There's been a lot of study

What you described above with motorcycle riding, skiing, bouldering, etc are known as "peak experiences" and associated with "flow". There's been a lot of study going into the benefits of these things which is pretty neat. https://en.wikipedia.org/wiki/Peak_experience https://en.wikipedia.org/wiki/Peak_experience https://en.wikipedia.org/wiki/Flow_(psychology) https://en.wikipedia.org/wiki/Flow_(psychology)