In part II, I will introduce you to the steps that can be taken right now—and new therapies in development—that may slow, stop, or reverse aging, bringing an end to aging as we know it. And yes, I fully recognize the implications of the words “bringing an end to aging as we know it,” so, in part III, I will acknowledge the many possible futures these actions could create and propose a path to a future that we can look forward to, a world in which the way we can get to an increased lifespan is through an ever-rising healthspan, the portion of our lives spent without disease or disability.
