Yeah, I&#x27;ve wondered the same.<p>I recall another study -- no idea where I&#x27;d find it now -- which did body scans of runners. They found that runners which averaged 11mi&#x2F;wk had substantial interior fat deposits. Runners that averaged 17mi&#x2F;wk had very little.<p>Actually, did a bit of Googling, looks like it might have been a study by Dr. Uwe Schütz published in 2009, found a mention of it here: <a href="http:&#x2F;&#x2F;www.runnersworld.co.uk&#x2F;weight-loss&#x2F;running-the-life-saving-workout&#x2F;8408-2.html" rel="nofollow">http:&#x2F;&#x2F;www.runnersworld.co.uk&#x2F;weight-loss&#x2F;running-the-life-s...</a>