> I doubt there are any distance running health benefits compared to benefits from short distance running and/or walking.

The 32,000 person study in the American Journal of Clinical Nutrition (1999) I mentioned above found that there are.

Can you refer me to any peer-reviewed research linking sprint training or weight training with equal or greater benefit in any of the health indicators that Paul Williams's found distance running improved? Or any research demonstrating that strength training induces neurogenesis?

If not, then please stop sharing what you personally "doubt" or "suspect" is the case. It's just not constructive.