>>76316216 (OP)Don't believe those fairytales, the people in ancient history were far healthier than people today. Sometimes freak concidences do happen, but also there are often plenty of arguments and clauses about who was the first person to do something without it being an outright complete lie.
It's again people thinking about what they CAN do rather than what they SHOULD. Long distance running other than done casually is really bad for you. Even the word "casual" has a stigma to it, like you're not a "true" patron of the activity when you just do it casually - actually the vast majority of things should be done casually because casual is where you get the most benefit and least it becoming a thing about ego and you start wasting your life on the thing for itself than what it can do for you.