Foundations
Core concepts and organizing frameworks that explain what longevity science is trying to measure, protect, and improve.
Subdirectories
Use these nested branches to keep topic overlap intentional while still separating concepts, entities, and profiles cleanly.
Aging Mechanisms
The biological processes researchers use to explain why aging happens, including hallmarks, inflammation, and system-level decline.
Open branch →Healthspan Measures
The big-picture concepts used to frame aging well, including healthspan, lifespan, biological age, and functional capacity.
Open branch →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.
What Is Longevity?
A plain-English explanation of longevity science and why the field has shifted its focus beyond lifespan toward the quality of the years lived.
ArticleHealthspan 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.
Glossary TermLongevity
The capacity to live a long, healthy life. In modern science, longevity refers not just to maximum lifespan but to the extension of healthspan, the years lived in full physical and cognitive health.