As I see it, it's another form of addiction. The LA Marathon goes down my street to the end location, and omg, I cannot watch them. The PAIN. And then there is the increasing joint damage and surgeries and replacements, it's worse and worse than ever.

It's bad enough I elected a hip replacement at 72 (old age reason) and thinking had I been a more aggressive exerciser and or runner, I could have been like the ones today doing these 30 yrs and on.

These early age replacements put the person in a position for revisions down the road as these replacements do wear out. Moderation in all forms of life is key as I see it .. I've done my share of fanatic dancing and exercising, but never the running thing.