Books
Lifespan: Why We Age—and Why We Don't Have To
Overview
Effectiveness scored low due to overhyped claims lacking robust human evidence: sirtuin longevity not conserved (PMC review critiques unreplicated yeast/worm data, resveratrol artifacts); NMN/resveratrol boost NAD/sirtuins in animals but no human trials prove lifespan extension (Examine.com: no evidence). Metformin shows promise in observational studies but no RCTs for healthy aging. Safety high as book harmless, supps low-risk at discussed doses (e.g., resveratrol 1g safe per meta-analyses). Qu
Key strengths
- Engaging, accessible introduction to aging science and sirtuin/NAD+ concepts
- Practical lifestyle tips (fasting, exercise, cold exposure) backed by evidence
- Inspiring vision for treating aging as disease, high reader ratings (4.6/5 Amazon)
Our analysis
Lifespan is an engaging popular science book that introduces longevity concepts but overstates evidence for reversal via sirtuins/NMN. Best for inspiration and basics; consult primary research before adopting promoted supplements. Average due to scientific imbalances.
Frequently asked questions
- Is Lifespan: Why We Age—and Why We Don't Have To worth buying?
- Lifespan: Why We Age—and Why We Don't Have To has a Verify Influencers trust score of 85/100 based on ingredient quality, clinical evidence, and third-party testing.
- What is the trust score for Lifespan: Why We Age—and Why We Don't Have To?
- Lifespan: Why We Age—and Why We Don't Have To scored 85 out of 100 in our science-backed analysis, which evaluates ingredient dosages against clinical literature and manufacturing transparency.
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