Privacy

The calculator keeps your inputs in your browser

The actuarial age calculator runs entirely client-side. Your age, sex, height, weight and lifestyle answers are used to compute a result on your own device and are never sent to our servers or stored. Close the tab and they are gone. This is a deliberate trust choice — a site about your mortality has no business hoarding your health details.

What we do collect

• Anonymous analytics. We use privacy-respecting analytics (with IP anonymisation) to count things like how many people finish the calculator or read an evidence page. This is aggregate usage data, not tied to your identity.
• Your email, only if you give it to us. If you subscribe to the Research Digest, we store the email address you submit so we can send it. You can unsubscribe at any time, and we do not sell it.

Third-party links

When you click an affiliate or biological-age link you leave this site, and the destination’s own privacy policy applies. We pass no health inputs to them — we can’t, because we never had them.

Contact

To ask what we hold about you, or to be removed, get in touch via the author page.