There’s no surefire way to dodge the colds and the flu—both are respiratory illnesses caused by viruses, explains Pritish Tosh, M.D., an infectious disease physician at the Mayo Clinic. Still, it's possible to preempt the routine storm of seasonal sicknesses by keeping your immune system—your body’s virus-buster—on its A-game. Follow these 10 tips to help cut down on the number of days you spend coughing, sneezing, and calling out sick this winter.
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