Do you get headaches or feel tingly after eating Chinese food? It may be from the flavor enhancer monosodium glutamate, better known as MSG. Learn what MSG is, why it's used, and what the risks may be.

Just because something looks bad doesn't mean it's contagious—and that includes these icky diseases, disorders, and infections

It's never too early—or too late—to safeguard your mind against age-related decline. Here's what you can start doing today.