Photo: The Voorhes

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You can't wait to get away from it all—annoying coworkers, traffic jams, the endless cycle of chores. But you may not realize that you're also taking a break from many of the things that keep you healthy: fresh, well-balanced meals; regular exercise and transportation that doesn't involve long stretches cooped up in recirculated air with dozens of other passengers. Enjoy your R&R without getting sick, thanks to this doctor-approved advice.