Dr. Travis Stork: The Best Way to Fight Germs on Airplanes

We've all been there — you're on a full flight, stuck in the middle seat between a cougher and a sneezer with nowhere to turn. Are you doomed to get sick? Dr. Travis Stork, co-host of "The Doctors," says there may be something you can do.

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If germy particles are floating in the air, switch on your overhead air vent to the highest setting, aimed downward at your face. "The air will actually help push those particles away," he says.

While many stock up on vitamin C and take other supplements designed to strengthen the immune system for travel, Stork says, wellness is more in your head than you think. "All of those supplements out there, a lot of it is the placebo effect," he explains. "If you're more optimistic and you believe you're going to get better, your immune system strangely fires up."

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And, of course, take some hand sanitizer with you. "Airplanes are the one time I bring alcohol-based hand sanitizer," he says. "There are germs everywhere, and you are more likely to get sick when you're traveling."

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To find out if Dr. Travis says the flu vaccine really works, check out this episode of "Daily Shot," and be sure to watch him on "The Checkup With Dr. Travis Stork" on Yahoo.