Beehive extract: Coming to the Tour de France?

By Janet Raloff, 13:42 PM July 29, 2009

Lance Armstrong take note: A new study indicates an extract of propolis, a honeybee product, holds promise for helping endurance cyclists cope more effectively with the heat stress that develops during long-distance rides. That heat can diminish an athlete’s performance by fostering fatigue and dehydration.

Propolis is a resinous material that bees fashion from plant saps and the like. They use it to not only caulk small spaces in their hive but also to insulate and reinforce the hive’s sup...

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