Original U.S.-focused guides
Health Research, Circadian Optimization & Longevity Science Hub
Each guide summarizes public-health guidance in plain language, explains how strong the evidence is, and lists what the research cannot tell you. Select a guide to read it in full.
Editorial methodology
How guides are built, in four steps.
Start with public guidance
Topics are anchored in recommendations from U.S. public-health agencies and recognized organizations.
Name the kind of evidence
Each guide says whether claims rest on trials, observational studies, expert consensus, or early research.
State the limits
Guides explain what the research cannot show and where individual needs vary.
Link only real sources
References point to actual public pages. No citations, statistics, or reviews are invented.
Reading times are calculated from each guide's word count at 200 words per minute.
How each guide is organized
Summary and sections
A short summary followed by clearly headed sections.
Evidence and limits
What the research supports and what it does not.
Practical takeaways
Low-risk actions and questions for your clinician.
Source references
Links to the public sources behind the guide.