Your doctor can measure almost everything about your health — blood pressure, cholesterol, bone density. But what about how fast you’re aging? There’s no test for that. Yet.

In this video, Dr. Brianna Stubbs of the Buck Institute for Research on Aging explains why our best aging tests fall short — each one captures only a sliver of the picture — and how a Stanford-led coalition called THRIVE is building a single, at-home score for the whole person: a concept known as intrinsic capacity.

One number, built to predict the next 20 years of your health, that will let doctors treat aging at its root before decline sets in.

It’s one of the most ambitious programs in geroscience, and if they succeed, it will impact millions of people worldwide.

Watch Brianna and a cast of top longevity experts in our award-winning documentary Forever Young, now available on Apple TV and Amazon.

🎬 Watch the full documentary — Forever Young — now streaming:

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