[bevan]

It is insane in today's world! But big mileage (barefoot, no less) is something we evolved for. Check out the great book Born to Run by Chris Macdougal which explores that concept.

[gregwebs]

Micah True, a hero of Born to Run, died after the book was published at age 58 of heart failure while doing a 12 mile training run.

[bevan]

Yes, that's explored in the sequel. He lives on in Urique, Mexico where his likeness is plastered everywhere and is the namesake for the big annual race in that town.