Sources
Scientific sources and evidence databases
We base our articles on primary scientific literature, clinical guidelines, and database lookups. Here is our source policy.
Evidence Databases
Applied Scientific Sources
PubMed / MEDLINENational Library of Medicine (NIH)
Nature PortfolioNature Aging, Cell, Nature Medicine
The LancetThe Lancet Healthy Longevity
NEJM & JAMAClinical guidelines & trial data
Our Evidence Sources
We prioritize PubMed, MEDLINE, Nature Portfolio, The Lancet, NEJM, and JAMA. We do not use anonymous health forums or secondary blog posts as primary evidence.