Sourced, dated, and honest about review.

Our sources, in order

1. National guidelines and institutes: USPSTF, CDC, NIH (NCI, NIDDK, NHLBI, NIA, NIAMS, NIMH).
2. NCI PDQ® patient summaries — our main cancer source.
3. Specialty organisations' patient materials, such as the American Cancer Society, the Endocrine Society and the Bone Health & Osteoporosis Foundation.
4. Peer-reviewed reviews, only where the sources above don't cover a point.

We never use blogs, supplement sellers or forums.

Our rules

• Every factual statement carries a numbered citation linked to its source, with the date it was checked.
• Medical terms come with a plain-English explanation, and there are three reading levels: Everyone, Students and Detailed.
• Numbers keep their source and population; we never invent or round a statistic.
• Where experts disagree or a choice is personal — like PSA testing — we say so.
• We describe types of treatment and what to ask. We don't recommend treatment: your care team decides with you.
• Illustrations are labelled as illustrations.

Who writes it

Guides are drafted with the help of an AI writing assistant working only from the cited sources, and checked against those sources. The site's owner is not a doctor. Clinicians review the text; they did not write it. We will never invent or imply a reviewer.

Clinical review

0 of 22 guides reviewed. No clinician has reviewed the content yet. Pages show “Medical review: pending” until a named, qualified reviewer signs off.

A guide counts as medically reviewed only when a named, licensed clinician in the relevant field has read the whole guide, every correction they raised has been applied or logged as declined with a reason, and their name, credentials and review date are published on the guide. Cancer guides are reviewed by an oncologist and by the specialist for that part of the body. Review does not mean a clinician endorses this site or anything on it, and the site still does not give personal medical advice.

Reviewers check that facts are correct at all three reading levels, that screening advice matches the current guideline and shows its grade, that urgent-care boxes list the right warning signs, that risk factors are split correctly, that nothing reads as a prediction or a prescription, that myths are real myths, and that every source supports what it is cited for.

When a guide is reviewed again

• A guideline it relies on changes (USPSTF, CDC or the relevant specialty body).
• Its medical text, screening section or urgent-care box is edited.
• A reader reports an error.
• 12 months pass since its last review.

Until it is re-checked, the guide shows “Medical review: update pending” instead of the reviewer's name. Typo and layout fixes don't trigger re-review but are logged below.

Guideline checks

Review log

Guideline changes, reader error reports and minor edits.

Corrections

Spotted a mistake? Use “Report an error” at the bottom of any page. Reports go to the reviewing clinician, and the fix and date are logged.

The content register