Scientist warns marathon runners: Water won't help you keep your cool

Runners in today's London Marathon may be tempted to down several litres of water to keep their cool and achieve their best time, but large fluid intake does not achieve either, according to a sports scientist from the University of Exeter.

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<p><a href="http://www.physorg.com/news96429760.html">Scientist warns marathon runners: Water won't help you keep your cool</a></p> <p>Runners in today's London Marathon may be tempted to down several litres of water to keep their cool and achieve their best time, but large fluid intake does not achieve either, according to a sports scientist from the University of Exeter.</p>