Skipton, North Yorkshire, UK. 2nd Aug, 2014. 5,800 participants are taking part in the Tough Mudder challenge on the Broughton Hall Estate, just outside the North Yorkshire market town of Skipton. The final obstacle on the course is the Electroshock Therapy where participants run through a "field of live wires" to reach the finish line. © Tom Holmes/Alamy News Live

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Photo credit: © Thomas Holmes / Alamy / Afripics
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