What this site collects
Two categories of data are collected through this site directly: newsletter signups (email address, an optional first name, a consent timestamp, and the page or placement you signed up from, used for consent record-keeping and to understand which pages drive signups) and basic, aggregated page-view analytics that does not use invasive session replay or track you individually across other sites. The specific analytics and newsletter providers had not been finalized at the time this page was last written; this page will be updated with the specific provider names and any resulting data-processing detail before real signups go live, and this notice will not fall out of sync with what's actually running.
Newsletter data
Newsletter signups use double opt-in: nothing is added to the sending list until you confirm from a confirmation email. You can unsubscribe at any time from any email, without needing an account. Subscriber records are intended to live with the email provider used for delivery, not mixed into the site's editorial content system.
Health data published on this site
This project publishes the author's own selected health readings — not raw medical reports. Original lab reports and clinical documents are kept private; only extracted values, units, dates, methods, and interpretation are published, and they're checked for accuracy and for accidental identifiers before anything goes live. See measurement methodology for how each reading is sourced and labeled.
Location data
Garmin route data can reveal home, work, and routine locations and times. Public run entries, once published, omit precise start and end points by default and use generalized route information only after a privacy review.
Your rights
You can ask what data is held about you, request correction or deletion, and unsubscribe from communications at any time by contacting hello@marathonlongevity.run.
Changes to this policy
Material changes to this policy will be dated and noted here.
Last revised: 13 Aug 2026.