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Only scopes whose single label exactly matches one of the book’s defined categories are grouped. All others are “Other / multiple” until a grouping is approved.
- 1. What does “dying of old age” leave unexplained?
Age alone rarely explains the full medical story. Identifying disease and frailty can reveal opportunities for care, although no program makes death avoidable.
Evidence scope: ESTABLISHED CLINICAL KNOWLEDGE — Older adults: disease and frailty contribute to mortality; prevention cannot eliminate death.Part 1, Q1 · Part sources - 2. What is the difference between lifespan and healthspan?
Lifespan is how long you live. Healthspan is how long you live well. The gap between them is the real enemy.
Evidence scope: OBSERVATIONAL — Population estimates of healthy years differ from lifespan; no individual forecast.Part 1, Q2 · Part sources - 3. Why do we age at all?
Aging is damage that builds up faster than the body repairs it. Scientists now describe twelve specific kinds of damage, called the hallmarks of aging.
Evidence scope: ESTABLISHED BIOLOGY — Aging mechanisms; PRECLINICAL for extending human lifespan by targeting them.Part 1, Q3 · Part sources - 4. Is aging a disease?
Officially, no. Practically, it is the single biggest risk factor for almost every disease you fear, so it makes sense to treat it as something we can slow.
Evidence scope: INTERPRETATION — Geroscience rationale; treating aging itself has not demonstrated longer human life.Part 1, Q4 · Part sources - 5. How much of my lifespan is genetic?
Many estimates of lifespan heritability are a quarter or less, but that does not mean the remaining years are under personal control. Environment, social conditions, chance, behavior, and medical care all contribute.
Evidence scope: OBSERVATIONAL / GENETIC — Lifespan heritability in populations; not the percentage an individual controls.Part 1, Q5 · Part sources - 6. What is the maximum human lifespan? Can I live to 120?
The oldest verified person lived to 122. Living to 120 is not a realistic plan for anyone alive today. Living to 90 in good shape is.
Evidence scope: NOT DEMONSTRATED — No intervention guarantees age 120 or increases verified maximum human lifespan.Part 1, Q6 · Part sources - 7. Is longevity science real, or is it marketing?
Both. The laboratory science is real and exciting. Most of what is sold to consumers is far ahead of it.
Evidence scope: RESEARCH OVERVIEW — Proven disease prevention must be distinguished from unproven general rejuvenation.Part 1, Q7 · Part sources - 8. What have the mouse studies actually shown?
A handful of drugs reliably extend mouse lifespan. Most supplements tested the same way failed.
Evidence scope: PRECLINICAL — Lifespan effects in genetically heterogeneous mice; no established human lifespan benefit.Part 1, Q8 · Part sources - 9. If I could do only five things, what would they be?
Do not smoke. Control your blood pressure. Build and keep muscle. Protect your sleep. Stay connected to people.
Evidence scope: ROBUST, MULTIPLE DESIGNS — Adults: smoking avoidance, activity, and indicated risk-factor treatment; effects vary by intervention.Part 1, Q9 · Part sources - 10. What habits do you prescribe more often than any pill?
Ten small ones. None costs much, and together they outperform most of what is sold as longevity medicine.
Evidence scope: MIXED — Adult habits: some trial outcomes, some observational associations; the combined routine is not a tested prescription.Part 1, Q10 · Part sources - 11. I am already 70. Is it too late?
No. The body responds to good inputs at every age, and some of the best results happen in the oldest people.
Evidence scope: ROBUST HUMAN TRIALS — Older adults: appropriately tailored training can improve strength and function.Part 1, Q11 · Part sources - 12. I am 35. Isn’t this an old person’s problem?
At 35 you have the one asset no one can buy later: time. Small changes now compound for fifty years.
Evidence scope: GUIDELINE-BASED — Younger adults: assess risk and reduce cumulative exposure; no validated universal testing package.Part 1, Q12 · Part sources - 13. Why look at these three together?
Because each represents a different promise. Attia promises prevention. Robbins promises repair. Diamandis promises that if you last long enough, technology will rescue you.
Evidence scope: AUTHOR’S INTERPRETATION — Comparison of three public approaches, not a clinical evidence grade.Part 2, Q13 · Part sources - 14. What is Peter Attia’s central idea?
That medicine waits too long. He calls the old model Medicine 2.0, which treats disease after it appears, and argues for Medicine 3.0, which works to prevent it decades earlier.
Evidence scope: FRAMEWORK — Earlier prevention; individual recommendations require their own evidence and indications.Part 2, Q14 · Part sources - 15. What is the “Centenarian Decathlon”?
It is Attia’s exercise for the imagination. Decide what you want to be able to do physically in the last decade of your life, then train backward from that list starting now.
Evidence scope: PLANNING TOOL — Older-age functional goals; this named exercise has no demonstrated mortality effect.Part 2, Q15 · Part sources - 16. How much exercise does Attia recommend, and is that realistic?
A great deal: about three hours a week of easy cardio, one very hard session, several strength sessions, and stability work. Critics estimate it at close to ten hours a week. You can get most of the benefit with half that.
Evidence scope: ROBUST for general adult exercise benefits; LIMITED for superiority of this specific weekly dose.Part 2, Q16 · Part sources - 17. Where do you agree with Attia, and where do you differ?
I agree on exercise, early cholesterol treatment, protein, sleep, and emotional health. I am more cautious about testing healthy people extensively and about rapamycin.
Evidence scope: CLINICAL JUDGMENT — Agreement and disagreement with a public framework, not a tested treatment package.Part 2, Q17 · Part sources - 18. What is the big idea in Tony Robbins’s Life Force?
That you should become the chief executive of your own health, and that regenerative medicine, including stem cells, gene therapy, and new diagnostics, is about to change what is possible.
Evidence scope: BOOK SUMMARY — Regenerative claims vary; many remain preclinical or investigational in humans.Part 2, Q18 · Part sources - 19. What does Life Force get right?
Three things: that you must take ownership, that early detection matters, and that your state of mind affects your body.
Evidence scope: AUTHOR’S INTERPRETATION — Ownership and motivation do not establish efficacy of the therapies described.Part 2, Q19 · Part sources - 20. What should make a reader cautious about Life Force?
Enthusiasm runs ahead of evidence, especially on stem cells, and the authors have business interests in some of what the book promotes.
Evidence scope: DISCLOSURE ANALYSIS — Business interests are context, not proof for or against efficacy.Part 2, Q20 · Part sources - 21. Does mindset really change biology?
Yes, within limits. Optimism, expectation, and a sense of control have measurable effects on stress hormones, blood pressure, pain, immunity, and survival.
Evidence scope: OBSERVATIONAL for optimism and survival; HUMAN EXPERIMENTS for some expectation and symptom effects.Part 2, Q21 · Part sources - 22. What does Peter Diamandis mean by “don’t die of something stupid”?
That many deaths come from diseases that could have been found early, and that you should look for them on a schedule instead of waiting for symptoms.
Evidence scope: GUIDELINE-BASED for selected preventive services; NOT DEMONSTRATED for survival benefit of an extensive screening package.Part 2, Q22 · Part sources - 23. Should I copy Diamandis’s personal routine?
Copy the habits. Do not copy the pharmacy.
Evidence scope: MIXED — Adults: supported habits; no trial establishes safety or lifespan benefit of the complete drug stack.Part 2, Q23 · Part sources - 24. What is “longevity escape velocity,” and should I plan on it?
It is the idea that science will soon add more than one year of life expectancy for every year that passes, so that if you survive long enough, you can keep ahead of aging indefinitely. It is a hope, not a forecast you can plan around.
Evidence scope: SPECULATION — No clinical evidence establishes a date for longevity escape velocity.Part 2, Q24 · Part sources - 25. If you combine all three, what is the lesson?
Train like Attia, hope like Robbins, stay curious like Diamandis, and check all three against the evidence.
Evidence scope: AUTHOR’S SYNTHESIS — Priorities assembled from separate evidence, not a tested combined regimen.Part 2, Q25 · Part sources - 26. Why does a longevity book spend a whole part on the heart?
Because heart and blood vessel disease is the leading killer on earth, and it is the one we know how to prevent best.
Evidence scope: ESTABLISHED EPIDEMIOLOGY — Adults: cardiovascular disease is a major cause of mortality.Part 3, Q26 · Part sources - 27. What actually causes a heart attack?
Cholesterol-carrying particles get into the artery wall, the wall becomes inflamed, plaque builds for decades, and one day a plaque cracks and a clot forms.
Evidence scope: ESTABLISHED BIOLOGY — Atherosclerotic heart attacks; other mechanisms also exist.Part 3, Q27 · Part sources - 28. What is ApoB, and why do longevity doctors talk about it so much?
ApoB counts the number of harmful cholesterol particles in your blood. It is often a better predictor of risk than the standard LDL number.
Evidence scope: ROBUST RISK EVIDENCE / GUIDELINE — Selected adults: ApoB refines atherogenic-particle assessment; a measurement alone is not treatment.Part 3, Q28 · Sources: R4 - 29. What should my LDL cholesterol be?
Lower than you were probably told. The 2026 guideline sets goals again: under 100 if your risk is borderline or intermediate, under 70 if your risk is high or you already have heart disease, and under 55 if you have heart disease and are at very high risk.
Evidence scope: ROBUST HUMAN TRIALS / GUIDELINE — Risk-selected adults: LDL reduction lowers cardiovascular events; goals depend on risk.Part 3, Q29 · Sources: R4 - 30. What is Lp(a), and should I be tested?
Lp(a), said “L-P-little-a,” is an inherited cholesterol particle that raises heart attack and stroke risk. Test it once in your life. Then read the next paragraph carefully.
- 31. Are statins safe? I have heard frightening things.
Statins are among the most studied drugs in history. For people who need them, the benefit is large and serious harm is rare.
Evidence scope: ROBUST HUMAN TRIALS — Adults with an indication: statin cardiovascular benefit and adverse effects, not a guarantee of no harm.Part 3, Q31 · Part sources - 32. What is a coronary calcium score, and do I need one?
It is a quick, low-radiation CT scan that shows whether plaque has already formed in your heart arteries. It is most useful when you and your doctor are unsure whether to start medication.
Evidence scope: ROBUST PROGNOSTIC / GUIDELINE — Selected adults: CAC reclassifies risk; it does not visualize all plaque.Part 3, Q32 · Sources: R4 - 33. What blood pressure should I aim for?
A goal below 130/80 mm Hg is common for adults with hypertension when tolerated. A lower systolic goal may suit selected patients; symptoms, frailty, other conditions, and measurement method matter.
Evidence scope: ROBUST HUMAN TRIALS — Adults with hypertension: cardiovascular benefit of treatment; intensive targets require individual selection.Part 3, Q33 · Part sources - 34. Should I take a daily baby aspirin?
Do not start aspirin routinely for primary prevention. After an atherosclerotic event or stent, antiplatelet treatment is often important, but the choice depends on event type, bleeding risk, anticoagulants, and the treatment plan.
Evidence scope: ROBUST HUMAN TRIALS — Aspirin benefit and bleeding differ between primary and secondary prevention.Part 3, Q34 · Part sources - 35. Is heart disease different in women?
Yes. It is the number one killer of women, it tends to show up later and with different symptoms, and it is still missed too often.
Evidence scope: ESTABLISHED CLINICAL / OBSERVATIONAL — Women: symptoms and reproductive risk markers; chest discomfort remains common.Part 3, Q35 · Part sources - 36. Is inflammation really part of heart disease?
Yes, and we can measure it with an inexpensive blood test called hs-CRP only when it could clarify a cardiovascular risk decision.
Evidence scope: ROBUST HUMAN TRIALS for selected anti-inflammatory treatment; OBSERVATIONAL for hs-CRP risk prediction.Part 3, Q36 · Part sources - 37. What about atrial fibrillation and my smartwatch?
Atrial fibrillation is an irregular heartbeat that becomes more common with age and can cause strokes. Watches are good at spotting it. They are not a diagnosis.
Evidence scope: VALIDATED DETECTION / HUMAN TRIALS — Selected devices flag possible AF; ECG confirmation and individual stroke assessment remain necessary.Part 3, Q37 · Part sources - 38. What does a cardiologist’s own prevention checklist look like?
Seven numbers, checked on a schedule, and acted on early.
Evidence scope: CLINICAL FRAMEWORK — Selected adult risk assessment; no single checklist has a measured lifespan effect.Part 3, Q38 · Sources: R4 - 39. How do I know whether chest pain is my heart?
You cannot be certain at home, so learn the warning signs and act on them. Not every chest pain is a heart attack, and atypical does not mean safe.
Evidence scope: GUIDELINE-BASED SAFETY — Adults with possible acute coronary symptoms: urgent assessment, not home exclusion.Part 3, Q39 · Part sources - 40. I have been told I have plaque. Is that a death sentence?
No. Plaque can be stabilized, and with intensive treatment it can shrink. Finding it early is good fortune.
Evidence scope: ROBUST HUMAN TRIALS — Adults with atherosclerotic disease: lipid lowering reduces events; imaging regression is a separate outcome.Part 3, Q40 · Part sources