New research suggests a few gargles of a sugary solution, like mouthwash, offers a performance boost for endurance athletes. When scientists had endurance runners swish, but not ingest, a basic sugar solution during a timed trial, they measured a 5% improvement in performance.

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New research suggests a few gargles of a sugary solution, like mouthwash, offers a performance boost for endurance athletes. When scientists had endurance runners swish, but not ingest, a basic sugar solution during a timed trial, they measured a 5% improvement in performance.