Meditation may not be able to cure every ailment, but it's a powerful tool to help regulate your nervous system. It can also change your life.

Around the world, there are a number of places where people live longer, happier, healthier lives—and it’s not because of any diets, health regimens, or supplements. The scientists who have studied them call them “blue zones”—and they all have a few things in common that lead to greater longevity.