Longevity and Healthspan Protocols Cheat Sheet

Updated 2026-05-22

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Longevity and healthspan science sits at the intersection of preventive medicine, exercise physiology, nutritional biochemistry, and behavioral psychology, aiming to maximize not just years lived but years lived well. The critical distinction driving the field is healthspan — the span of life free from chronic disease and functional decline — versus mere lifespan, which measures total years regardless of quality. What makes this domain unusually actionable is that roughly 80% of how long and how well we age is determined by lifestyle and environment rather than genetics (Danish Twin Study), meaning the levers are largely within individual control. The overarching mental model: begin aggressive prevention decades before symptoms appear, because every major chronic disease has a long preclinical phase during which the biology is already moving — but is still modifiable.

What This Cheat Sheet Covers

This topic spans 15 focused tables and 98 indexed concepts. Below is a complete table-by-table outline of this topic, spanning foundational concepts through advanced details.

Table 1: Foundational Concepts and FrameworksTable 2: The Four Horsemen — Disease Prevention PrioritiesTable 3: Exercise Pillars for LongevityTable 4: Biomarker Tracking for LongevityTable 5: Sleep as a Longevity LeverTable 6: Nutrition Principles for LongevityTable 7: Fasting and Metabolic InterventionsTable 8: Thermal Stress Protocols (Sauna and Cold)Table 9: Pharmacological and Supplement InterventionsTable 10: Cellular and Molecular Longevity PathwaysTable 11: Stress Management and Mental Health for LongevityTable 12: Social Connection and Blue Zones LessonsTable 13: Hormone OptimizationTable 14: Cancer Screening ProtocolsTable 15: Integration with Primary Care and Avoiding Common Pitfalls

Table 1: Foundational Concepts and Frameworks

The vocabulary and conceptual architecture of modern longevity medicine shapes how every protocol, biomarker, and intervention is interpreted. Understanding these terms first prevents category errors — confusing "living longer" with "aging better," or treating symptom management as prevention.

Concept	Example	Description
Healthspan	A 90-year-old who walks, thinks clearly, and lives independently vs. one bed-bound for the last 20 years	Years of life spent in good health, free from chronic disease and functional decline; the primary goal of longevity medicine, distinct from total lifespan.
Lifespan	Average U.S. life expectancy ~78 years	Total years lived; maximizing lifespan without healthspan produces the "too well to die, too ill to live" paradox documented in research.
Medicine 3.0	Ordering ApoB + CAC score at age 35 rather than waiting for a cardiac event	Peter Attia's framework: shift healthcare from reactive disease treatment (Medicine 2.0) to proactive, personalized, decades-early prevention; treats probabilistic risk not established pathology.
Four Horsemen of Chronic Disease	Cardiovascular disease, cancer, neurodegenerative disease, metabolic disease	The four conditions accounting for >80% of deaths in non-smoking adults over 50; each has a long preclinical phase during which lifestyle and pharmacological intervention can alter the course.
Marginal Decade	Training today so you can carry groceries, climb stairs, and pick up a grandchild at age 85	Peter Attia's concept: your last decade of life sets the standard — work backward from the functional capacity you want at 80–90 to determine what training you must do now.

Table 1: Foundational Concepts and Frameworks

Concept	Example	Description
Healthspan	A 90-year-old who walks, thinks clearly, and lives independently vs. one bed-bound for the last 20 years	Years of life spent in good health, free from chronic disease and functional decline; the primary goal of longevity medicine, distinct from total lifespan.
Lifespan	Average U.S. life expectancy ~78 years	Total years lived; maximizing lifespan without healthspan produces the "too well to die, too ill to live" paradox documented in research.
Medicine 3.0	Ordering ApoB + CAC score at age 35 rather than waiting for a cardiac event	Peter Attia's framework: shift healthcare from reactive disease treatment (Medicine 2.0) to proactive, personalized, decades-early prevention; treats probabilistic risk not established pathology.
Four Horsemen of Chronic Disease	Cardiovascular disease, cancer, neurodegenerative disease, metabolic disease	The four conditions accounting for >80% of deaths in non-smoking adults over 50; each has a long preclinical phase during which lifestyle and pharmacological intervention can alter the course.
Marginal Decade	Training today so you can carry groceries, climb stairs, and pick up a grandchild at age 85	Peter Attia's concept: your last decade of life sets the standard — work backward from the functional capacity you want at 80–90 to determine what training you must do now.