Privacy policy
In plain language: reading this site does not tell us who you are.
What this site collects
Nothing that identifies you. There are no accounts, no sign-ins, no forms that reach a database, and no comment sections. We do not run our own analytics and do not set our own tracking cookies.
Like nearly every website, the hosting service that delivers these pages keeps short-lived technical logs (for example, the page you requested and roughly where the request came from). That exists to deliver the site and stop abuse; it is not used to build a profile of you, and we do not sell it.
If advertising is switched on
This site plans to carry display advertising in the future, probably through Google AdSense. Advertising only appears once it has been switched on — as of now it is not. If and when it is:
- Google, as the ad provider, may use cookies or device identifiers to show ads and measure how they perform. That happens under Google's own policies, not ours.
- Visitors in the European Economic Area, the United Kingdom and Switzerland will be asked for consent before personalised advertising is used, as required by that law.
- Anyone can opt out of personalised Google advertising at adssettings.google.com, and of many other providers at optout.aboutads.info.
- This page will be updated the day advertising goes live, before or at the same time as the first ad appears.
Affiliate links
Some product links may earn the site a commission if you buy through them. Clicking such a link sends you to the retailer's own website, which has its own privacy policy — we never see what you do there. Which links are affiliate links is described in the affiliate disclosure.
Third-party pages
Articles link to external sites, including medical journals and universities. We do not control those sites and are not responsible for their practices.
Children
This site is written for adults and is not directed at children under 13. We knowingly collect no data from anyone, including children.
Your rights
If you are in the EU or UK you have rights over your personal data under GDPR. Because we hold no personal data about you, there is normally nothing to access, correct or delete. If you believe we hold something about you — for example from an email you sent — write to us and we will deal with it. The current contact details are on the contact page.
Changes to this policy
If how the site works changes, this page changes with it. The date below is the last update.
Last updated: November 2026.