Just 100 grams of sugar (about the amount in three cans of soda) can greatly reduce the ability of your white blood cells to fight infection for up to five hours.
Credit: Getty Images
The 2014 Adventure Issue
From Iceland's Highway 1 to Utah's Canyonlands, an epic itinerary for modern explorers.
Plus: Building a Bigger Action Hero
ON NEWSSTANDS NOW
The Interpreters We Left Behind
The Rise of Cyclocross
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