I came across an article in National Geographic from a few months ago. It's called "The Secret to a Long, Healthy Life: Your lifespan is overrated. It's health span that really matters now." It's about longevity and what some people call health span. Health span, as opposed to lifespan, refers to the period of life when you are healthy. We all hope we won't end our lives in an extended illness or disability that impacts our quality of life, and, as I usually say in the opening, my goal is to live a long, healthy, happy, active life right up to the very end.

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