Corrections are the most useful thing you can send me.

If something on this site is wrong, out of date, overstated, or reads like it was written to sell you something, I want to know. Point me at the page and tell me what’s off. If you have a source, even better — I’ll check it, and if you’re right the page gets corrected and the change gets noted.

What I can help with

• Corrections and errors — always welcome, always read.
• Suggestions for what to cover — if you went looking for something and couldn’t find a straight answer, tell me.
• Questions about something on the site — happy to clarify what a page meant.

What I can’t help with

I can’t give personal health advice, and I won’t try. If you’re worried about a specific symptom, exposure, or diagnosis, that needs a doctor who can ask you questions and look at your situation properly. A website can’t do that, and one that pretends otherwise is one to be wary of.

I also don’t accept sponsored posts, paid links, guest posts, or “collaborations.” Those emails won’t get a reply. The reasoning is on the How I Test page.

Get in touch

I read everything. I don’t always reply quickly, and for straightforward questions the answer may just be a page update rather than an email — but nothing gets ignored.