Comment by watwut

> Similarly, if you're a runner you've probably multiple times had people say, directly to you, "oh I could never do that to my knees, running is so bad for them!"

Incidentally, yes if you have knees with tendency to hurt, you should not run much. That is not controversial, that is what doctors will tell you: running regularly can often cause pain in the knees from overuse. People who self identify as runners do run a lot. They are not doing 5km twice a week, they do something like 10km every day. And not everyone, especially not older people, can do that sort of load without damaging knees.

And those overuse injuries can make you stuck at home having to skip any kind of sport for very long time.