And why would I want &quot;hunter-gatherer fitness&quot;?<p>Running slowly for long distances is not the epitome of top-health. In fact it reduces body fat (good) and muscle mass. Just take a look at any marathoner, compare it with short-distance runners.<p>This looks like &quot;Paleo diet&quot; for exercise. And similarly to it, some aspects make sense, but others don&#x27;t.