Prognosis

The Key to a Longer Life Is a Youthful Brain

A doctor examines MRI scans.

Photographer: Mohammed Sawaf/AFP/Getty Images

Hi, it’s Michelle in New York. If, like me, you love being told you have an “old soul,” you may want to reconsider. Having a “youthful brain” may actually help you live longer. More on that in a moment, but first …

Your brain could very well be the gatekeeper of a long life.