Transparency
Editorial Policy
How YEARS content is created, reviewed and kept up to date.
Who writes for YEARS?
Three dedicated authors create the content on years.co — each with their own expertise:
Niko Hems, M.Sc.
Co-Founder of YEARS, M.Sc. Management with focus on Data Science (UC Berkeley Exchange) and Master of Science in Longevity (Geneva College of Longevity Sciences). He translates scientific research for a broad audience and writes mainly on data, biomarkers and lifestyle interventions. View profile →
Dr. med. Jan K. Hennigs
Medical Director of YEARS, internal medicine specialist and pulmonologist. He writes medical content first-hand and is responsible for the medical quality assurance of all published articles. View profile →
Doctor-medic Alexandru Ardelean
Physician focused on preventive medicine and functional diagnostics. He fact-checks medical content and contributes his own articles on topics such as diagnostics, imaging and cardiovascular prevention. View profile →
How we research
For every article we consult current medical literature. We prefer:
- Peer-reviewed studies from established journals
- Recent studies, preferably from the last five years
- Multiple independent sources for controversial topics
- Original studies over secondary sources, where possible
- DOI and PubMed links for direct verification
Wherever a statement is supported by a specific study, we link to the source directly in the text.
Medical review
Medical articles written by Niko Hems (non-physician author) are reviewed by one of our physicians before publication.
On every reviewed article you will find:
- The name of the reviewing physician
- The date of the medical review
- A link to the reviewer profile
This makes it traceable which certified physician confirmed the factual accuracy.
What we do not do
For ethical and legal reasons we follow clear boundaries:
- No healing promises. Preventive medicine reduces risk — it does not guarantee cure or longer life.
- No guarantees of treatment success. Every person responds individually to diagnostics and intervention.
- No personalised medical recommendations without consultation. Articles do not replace a physician consultation.
- No advertising disguised as editorial content. YEARS programs are clearly marked as such.
- No affiliate links. We do not recommend supplements or external products for commission.
Updates and revisions
Medical information ages quickly. Therefore:
- Every medical article is reviewed for accuracy at least once per year
- New studies or guidelines trigger article updates promptly
- The date of the last review is visible on every article
- Substantial content changes are noted transparently within the article
Corrections
If you spot an error or outdated information:
- Email us at info@years.co
- We review every notification and correct confirmed errors promptly
- For substantial changes, the article includes a correction notice
Responsibility and contact
Editorial responsibility under § 18 (2) MStV lies with YEARS GmbH (see imprint).
For questions about our editorial standards: info@years.co
YEARS GmbH
Joachimsthaler Straße 34
10719 Berlin
Email: info@years.co
Phone: +49 3222 1094101