By Julienne Bay, Ottawa Sun, July 28, 2015

With a four-day stretch of temperatures expected to reach above 30C, Glyn Kenny,
University of Ottawa research chair in environmental physiology, spoke with the
Sun to debunk some myths on how to keep cool on a hot summer day. Sun: Does
exercising outside to sweat more on a hot day actually keep you cool? Kenny: No.
You got to remember that if that sweat drips off your body, it's of no value to
you because it doesn't provide cooling. It's only when sweat evaporates off your
skin, that you get any cooling (effect) from that evaporated sweat. via
University of Ottawa prof debunks myths on staying cool | Ottawa & Region
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