Fox Health: Desert ultra-marathoners test spiritual and physical resolve

[riky]

Desert ultra-marathoners test spiritual and physical resolve

<p>In the world of long-distance running there are the marathoners, ultra-marathoners and the desert runners who trek for days through drought, wind, heat and cold with supplies strapped to their backs.</p><img src="http://feeds.feedburner.com/~r/foxnews/health/~4/GF8ReibRGx0" height="1" width="1"/>

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