Evidence matrix (provisional)
Questions per part by the book’s defined evidence categories. Only scopes that match a category name exactly are counted in it; everything else is “Other / multiple” until the proposed grouping is approved. Hover a number to see each scope as printed.
| Part | Total | ROBUST HUMAN TRIALS | LIMITED HUMAN STUDIES | SMALL HUMAN STUDIES | OBSERVATIONAL | PRECLINICAL | NOT DEMONSTRATED | GUIDELINE-BASED | REGULATORY STATUS | CLINICAL JUDGMENT | Other / multiple |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. The Truth About Aging | 12 | 1 | 1 | 1 | 1 | 1 | 7 | ||||
| 2. Lessons from the Longevity Giants | 13 | 1 | 12 | ||||||||
| 3. The Heart of the Matter | 17 | 4 | 13 | ||||||||
| 4. Know Your Numbers | 13 | 1 | 1 | 2 | 1 | 8 | |||||
| 5. The Advanced Testing Menu, Graded | 31 | 2 | 5 | 24 | |||||||
| 6. Muscle and Movement | 11 | 4 | 3 | 4 | |||||||
| 7. Sleep, Stress, and Mood | 9 | 1 | 1 | 7 | |||||||
| 8. Sleep Apnea, the Silent Thief | 9 | 1 | 8 | ||||||||
| 9. Food, Fasting, and Alcohol | 14 | 1 | 13 | ||||||||
| 10. The Blue Zones Formula | 7 | 1 | 6 | ||||||||
| 11. Metabolism, Insulin Resistance, and the GLP-1 Era | 23 | 4 | 2 | 17 | |||||||
| 12. Protecting Your Brain | 16 | 2 | 1 | 13 | |||||||
| 13. Bones and Joints | 12 | 3 | 1 | 1 | 7 | ||||||
| 14. Menopause, Hot Flashes, and a Woman’s Second Half | 16 | 2 | 1 | 1 | 12 | ||||||
| 15. Testosterone and a Man’s Second Half | 16 | 1 | 1 | 1 | 13 | ||||||
| 16. Cancer: Prevention and Early Detection | 16 | 1 | 2 | 1 | 1 | 11 | |||||
| 17. Supplements, Ranked by Evidence | 22 | 2 | 1 | 1 | 18 | ||||||
| 18. The Longevity Drugs | 10 | 1 | 1 | 8 | |||||||
| 19. Repurposing Today’s Medicines for Longevity | 13 | 2 | 11 | ||||||||
| 20. The Toy Chest: Every Drip, Device, and Gadget, Graded | 33 | 2 | 2 | 1 | 4 | 1 | 23 | ||||
| 21. The Med Spa Menu: Skin, Shape, and Sex | 12 | 1 | 11 | ||||||||
| 22. Mind, Body, and the Experimental Shelf | 23 | 1 | 1 | 21 | |||||||
| 23. The Frontier: Regenerative Medicine | 6 | 1 | 2 | 3 | |||||||
| 24. Gut, Inflammation, and Immunity | 10 | 10 | |||||||||
| 25. Inside the Longevity Industry | 15 | 1 | 14 | ||||||||
| 26. Clinics, Costs, and Scams | 8 | 8 | |||||||||
| 27. Everything Else You Wanted to Ask | 22 | 1 | 2 | 19 | |||||||
| 28. What Is Coming | 13 | 13 | |||||||||
| 29. Purpose, People, and Your Plan | 11 | 2 | 9 |
The testing scorecard
From Part 5, Q86: “Here it is on one page.”
FOUNDATIONS, selected for age and risk
- Blood pressure at home.
- Lipids with ApoB; Lp(a) once.
- HbA1c or fasting glucose when diabetes screening is appropriate; an oral glucose tolerance test in selected cases.
- hs-CRP only when it could clarify a cardiovascular risk decision.
- Kidney function with urine albumin.
- Liver assessment and FIB-4 when metabolic or other liver risks justify them.
- Blood count, TSH, and ferritin if tired or at risk.
- Heart calcium score at the right age.
- Proven cancer screening.
- Bone density at the right age.
- Aortic aneurysm ultrasound for men 65 to 75 who smoked.
- Hearing, vision, and a sleep test if you snore.
- Grip, balance, walking speed, and a fitness measure.
SOMETIMES, for a reason
- CT angiogram of the heart arteries.
- Carotid ultrasound.
- Cystatin C.
- NT-proBNP in people with diabetes or high blood pressure.
- Targeted genetic testing; pharmacogenomics.
- APOE, with counseling.
- PFAS blood level with known exposure.
- A multi-cancer blood test, after standard screening.
- A continuous glucose monitor for a few weeks.
SKIP
- Food sensitivity panels.
- Micronutrient, organic acid, and “leaky gut” tests.
- Urine mold tests and provoked metal tests.
- Saliva cortisol and dried-urine hormone panels.
- MTHFR.
- Reverse T3.
- Inflammation panels beyond hs-CRP; NMR particle tests.
- Telomere length.
- Hair analysis, live blood analysis, thermography.
- Whole-body MRI and brain volumetrics at average risk.
Evidence scope: CLINICAL SYNTHESIS — Testing categories apply to routine wellness use; specific indications can change the recommendation. Part sources