// Glossary

Glossary

Key terms in the biology of aging and longevity medicine, drawn from across the modules.

Autophagy
Cellular self-cleaning process that removes damaged proteins and organelles.
The Hallmarks of Aging
Biological age
An estimate of physiological age derived from biomarkers (epigenetic clocks, blood panels), often diverging from chronological age.
Why Longevity, Why Now
Geroscience
The interdisciplinary field linking the biology of aging to disease prevention.
Why Longevity, Why Now
Healthspan
The portion of life spent free from chronic disease and major functional decline.
Why Longevity, Why Now
mTOR(mTOR)
Mechanistic target of rapamycin; kinase that integrates nutrient and growth signals.
The Hallmarks of Aging
Senescence
Stable cell-cycle arrest accompanied by inflammatory secretion (SASP).
The Hallmarks of Aging