Trust in health writing depends on traceable sources. Here is how PinnacleLife finds, weighs, and cites the research behind every article.
Primary sources, wherever possible
We cite original research — the study, trial, or guideline itself — rather than secondary coverage of it. When we reference a finding, we link to the source so you can read it yourself and judge the evidence on its own terms.
Where our sources come from
We draw on established, openly verifiable scientific repositories, including:
- PubMed and PubMed Central — the U.S. National Library of Medicine's index of biomedical literature.
- Europe PMC — a complementary life-sciences literature database.
- ClinicalTrials.gov — the registry of human clinical studies and their results.
- MedlinePlus — consumer health information from the NIH / National Library of Medicine.
- Peer-reviewed journals — primary studies, reviews, and meta-analyses.
- Preprint servers — bioRxiv and medRxiv, clearly identified as not yet peer-reviewed.
Reading a citation
Where an article makes a specific scientific claim, that claim is tied to a source. We aim to characterize each source fairly — noting when a result comes from a small or early-stage study, an animal model, or an observational dataset rather than a randomized trial in people.
Preprints and preliminary research
Preprints (such as those on bioRxiv and medRxiv) share findings before formal peer review. They can be valuable early signals, but they have not been independently vetted. When we cite one, we label it as a preprint and treat its conclusions as provisional.
Keeping current
Evidence evolves, and so should the articles built on it. We revisit topics as new research lands, and we update or annotate earlier pieces when the science meaningfully changes.
Found a sourcing problem?
If a citation looks wrong, outdated, or mischaracterized, we want to know. Please reach us through our contact form.