Exercise & healthspanPublic-health guidance
Follow the evidence from everyday movement to physical function and long-term health.
Longevity Harbor — explore longevity
Your discovery feed
About this feed & its sources
Discover mixes recently published summaries, newly added sources, topics and content types. New to Harbor describes when we added a source; the original publication date is shown separately. There is no popularity score.
Sources are indexed automatically. Published AI summaries are labeled separately; original-language titles remain where no summary is available. Automated source checks do not replace editorial review.
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Connected sources
The topic index
Explore connections →Sleep & recoveryPublic-health guidance
Sleep duration is one part of the picture. Quality, regularity and persistent symptoms matter too.
Nutrition foundationsPublic-health guidance
Explore the difference between a dietary pattern, an isolated ingredient and a longevity claim.
Calorie restriction & fastingHuman biomarker research
Distinguish experimental dietary restriction, fasting schedules and evidence about human aging.
NAD⁺ & NMNEarly human research
What a small human NMN study measured, and why the result cannot speak for every supplement.
mTOR & rapamycinAnimal research
An influential mouse experiment is a starting point for research, not a human longevity prescription.
Cellular senescenceEarly human research
Learn why senescence is studied, and how a pilot trial differs from proof of a longevity treatment.
Biological age & clocksHuman biomarker research
Biological-age measurements are research tools. Understand what changes in a score can and cannot mean.
Hallmarks of agingScientific framework
A map of interacting biological mechanisms, rather than a checklist of proven treatments.
Understand the research
Study explorer →NMN and muscle insulin sensitivity
Randomized controlled trial
Short study; no human lifespan endpoint.CALERIE: reading an aging-clock result
Analysis within a randomized trial
Surrogate endpoints; not observed lifespan extension.Late-life rapamycin in mice
Animal intervention study
The result cannot be presented as human efficacy.An expanded framework for aging biology
Narrative scientific review
A framework, not a clinical trial or product assessment.