How to Fight Colds, Flus, and Infections at Any Age

No matter where you go in life, somebody’s sneezing, and possibly spreading colds, the flu, or other infections. Strangers on the elevator, kids at day care, even those self-important colleagues who refuse to take sick days—they all pose a risk. Avoiding germy people is your best defense, but boosting your immunity is just as important for preventing colds, flus, and infections. And because your immune system naturally weakens as you age, charging it up is crucial during cold-and-flu season. Here, an age-specific plan for optimum protection.