Google SEO
YMYL — Google Search Quality Guidelines
Why cite primary scientific sources in health content?
Published research and recognized health organizations provide stronger evidence than references to other blog posts in medical YMYL content.
Further analysis
Use this entry as an audit checkpoint. The cited source establishes the context; the direct answer identifies what to check before choosing an action.
In SFT, this topic relates to Trust. Check whether the signal is visible on the page, connected to the rest of the website and supported by understandable evidence.
Related search terms include scientific sources, clinical studies, health sourcing. Use them to describe the issue in a brief, audit or answer page.
Applying SFT
Trust requires observable evidence: sources, consistency, citations, identifiable authors and verifiable claims.