Grip Strength
A simple, well-studied measure of overall muscular strength using a handheld dynamometer, used as a proxy for broader physical function and frailty risk.
Functional performance measure
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Topic directory
Healthspan Measures
The big-picture concepts used to frame aging well, including healthspan, lifespan, biological age, and functional capacity.
2 profiles in this branch
Profiles
Entries in This Branch
These profiles can overlap deliberately with the editorial layer so major topics exist as explainer content and as directory records.
Biological Age
An estimate of how old the body appears physiologically, based on biological markers, as distinct from chronological age based simply on birth date.
Composite healthspan measure
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Parallel Coverage
Related Articles, Glossary, and FAQ
This branch intentionally overlaps with the editorial and reference layers so important concepts can be found from more than one angle.
Article
Healthspan vs Lifespan
Why the longevity field has shifted focus from how long you live to how well you live, and what that means in practice.
ArticleWhat Is Biological Age?
Biological age measures how old your body is functionally, not how long you have been alive. Here is how it is measured and why it matters more than your birth year.
Glossary TermHealthspan
The period of life spent in good health, with physical strength, cognitive function, mobility, and independence intact. Distinct from lifespan, which is simply the total years lived.