Competitors swim through mud underneath electrified wires during a Tough Mudder. Photo: Reuters

Tough Mudder, Spartan Race ... why pay to be electrified?

As the craze for obstacle course races comes to Asia, researchers have some reasons why pain is proving popular

Topic |   Outdoor & Extreme: Adventure Racing

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Competitors swim through mud underneath electrified wires during a Tough Mudder. Photo: Reuters
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