Longevity Youth is a source-led educational publication. We explain what evidence supports, what it does not, and why the difference matters.
Library-wide review completed August 12, 2026. The current collection contains 360 evidence articles and 54 deep reports across 10 topics, drawing on 597 qualified sources.
The minimum publishing standard
- Trace the claim. Every article links to at least three qualified sources: government guidance, professional guidelines, peer-reviewed primary research, or rigorous evidence synthesis.
- Name the evidence stage. We distinguish public-health guidance, observational association, randomized human evidence, early pilot work, and cell or animal research.
- Keep claims below the evidence ceiling. Association is not written as causation. A biomarker is not written as a health outcome. A pilot is not written as proof.
- Show uncertainty. Every brief includes a section explaining where confidence ends, which populations differ, or what a study cannot establish.
- Avoid personalized instruction. We support questions and decisions with qualified professionals; we do not diagnose, prescribe, set doses, or replace care.
Source hierarchy
We generally prefer current government and public-health guidance; clinical guidelines from accountable professional bodies; systematic reviews and meta-analyses; then primary human research. Preclinical studies are used only when the article is explicitly about emerging mechanisms.
Automation and human limits
Automated tools can assist with research discovery, structured drafting, link checks, formatting, and quality audits. They can also miss context or make errors. We do not claim every article has been reviewed by a physician or scientist, and we do not claim permanent or 100% accuracy.
Maintenance and corrections
Each brief carries a source-check date. Time-sensitive guidance should be checked against the linked live authority at the point of use. Material corrections should be made promptly and transparently. Please send the source and a concise explanation if you find a factual error, outdated recommendation, or broken link.
Independence
Articles do not contain affiliate links, paid product placement, or commissions on source links. See Independence & Funding and Medical Limits.