Where our information comes from

Sources

Every article on TiredOrSick.com links to public, government-run health authorities rather than asking you to take our word for it. We sequence references consistently as USA, UK, Canada, and Australia on every page so the pattern is predictable across the site.

Primary authorities we reference

How we choose sources

We prioritize primary government and public health bodies over secondary or commercial health sites. Where authorities disagree, we say so rather than picking one as universally correct — see our Editorial Policy. Each article's own reference list is the definitive source list for that page; this page describes the general methodology and the organizations you'll see cited most often.

Keeping references current

References are periodically reviewed and updated as guidance changes, in line with our Medical Review Policy. If a linked source has moved or been retired, please let us know via our Contact page.