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New clue shows who may catch a cold

Researchers have isolated a genetic marker that appears to predict who is most likely to catch cold. The hope is that the findings will help scientists discover lifestyle changes that will protect immune systems and help folks function more like those who never get sick. Full story

Don’t starve a fever! Cold and flu myths debunked

   Sascha de Gersdorff, senior health editor at Women’s Health magazine, quizzes TODAY’s Kathie Lee Gifford and Hoda on how to tell if common symptoms are a sign of the common cold or the flu, and how to combat both to stay healthy this holiday season.

How to stay healthy in flight

   Michelle Higgins, Practical Traveler columnist for The New York Times, and Dr. Roshini Raj, assistant professor of medicine at New York University, tell how to not get sick after a flight.

Study: Zinc can cut length of cold

   A study suggests over-the-counter supplements that contain zinc can shorten the length and severity of the common cold. KXAS-TV's Ellen Goldberg reports.

Study: Zinc zaps common cold symptoms

   Zinc supplements may reduce the length and severity of colds if taken within a day of the onset of symptoms. NBC's Brian Williams reports.

Vaccine Could Help Humans Kick Cocaine Habit

A vaccine that takes the high out of cocaine for mice could also be useful in treating human addiction, researchers announced Tuesday (Jan. 4). Full story

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Cold and flu season ramps up across the U.S.

Regular workouts ward off the common cold

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  Study debunks Echinacea as herbal cold remedy

The largest-ever study of Echinacea concludes that the herbal supplement, which has sales of $16 million a year, offers virtually no relief for the common cold. NBC's Robert Bazell reports.

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