Longevity & Aging
Most people think health means not getting sick. But health is also maintaining function for 80+ years. This book covers what causes biological aging, what accelerates and slows it, and how to invest in healthspan — not just lifespan.
Updated July 1, 2025
Chapters — 4
What Causes Aging
Aging is not a single process — it is a cascade of interconnected biological changes. Understanding the mechanisms gives you levers to slow them.
Muscle & Bone Over Time
Muscle loss and bone density decline are the silent determinants of function after 60. The time to address them is now.
Cognitive Aging
Cognitive decline is not inevitable. The brain is plastic throughout life, and the biggest risks are modifiable.
Healthspan vs Lifespan
Living longer matters less than living well longer. Healthspan — the years of functional, independent life — is the real target.