Everything on Cancer Explained

One page, the whole platform: 807+ free resources — articles, journeys, tools, guides, downloads, and games — all grounded in National Cancer Institute content, all free, all in plain language.

Learn about cancer

246 plain-language articles across 13 topics, every one grounded in National Cancer Institute resources.

Learning journeys & personalized start

10 step-by-step learning journeys (104 modules) that track your learning — never your health.

Tools

Interactive helpers that prepare you for real conversations with your care team. Everything stays on your device.

Clinical Trials Education Center

22 guide sections, 22 FAQs, 18 terms, and 10 cancer-specific education hubs. Educational only — never recommendations.

Side Effect Library

22 side effects explained — what they are, why they may happen, and questions to ask your care team.

Play & practice

12 game lessons, quizzes for every article, and flashcards — learning that feels like Duolingo, never like homework.

Downloads & printables

24 download-center resources and 19 printable one-pagers — checklists, trackers, note pages, and guides.

News & fresh content

295 news explainers connecting current events to trustworthy cancer education.

Support & comfort

For patients, caregivers, and everyone holding someone's hand through this.

Give & share support

50 free e-card designs plus giving options that keep all of this free.

Trust & transparency

How this site is made, sourced, and kept honest.

What’s new — changelog

How Cancer Explained has grown, release by release.

July 5, 2026
Learning platform expansion — Wave 1
- Clinical Trials Education Center: hub, 22-section guide, educational trial finder, questions builder, FAQs, glossary, and 10 cancer-specific pages.
- 10 learning journeys (104 modules) with progress tracking, plus the /start personalized onboarding.
- Ask Your Healthcare Team workspace: organize questions by appointment, mark answered, add notes, print.
- Question builder (15 categories), hospital bag checklist, and a 24-resource download center with 9 new printables.
- Side Effect Library: 22 side effects explained with a new organized center page.
- Ask Cancer Explained now declines personal trial-eligibility questions with a careful educational response.
July 4–5, 2026
Content growth
- Carcinogens & regulation section: 100 new articles with quizzes.
- Prevention & screening sprint: screening checkup tool, myths-vs-facts quiz, campaigns, and printables.
- Just Diagnosed and Caregiving hubs, practical-support category, RSS feed and weekly digest.
- 20 new Spanish translations (32 total) with language toggles.
July 4, 2026
The Hopeful Health redesign
- Site-wide redesign: calm lavender-and-purple design system, dashboard homepage, and a journey rail on every article.
- 50 e-card designs with a full personalization studio, plus redesigned donation pages.
- Doctor visit prep tool, upgraded learning game, and the 'Explain this' feature on every article section.
- E-cards now send by email with the sender's message and a supportive design.
Earlier
Foundations
- 295 news explainers, NCI PDF library, glossary, quizzes for every article, flashcards, learning paths, comfort and sleep spaces, Ask Cancer Explained, and the accessibility-first foundation this all builds on.

Everything here is educational only — not medical advice. Cancer Explained does not diagnose, recommend treatment, or replace your healthcare team. Content is based on National Cancer Institute resources; NCI does not endorse this site.