A question about something written here, a correction, or a study you
think I have misread. It goes straight to my desk.
What I can and can't answer
Ask me where a number came from, why I trusted one study over another, to
point me at research I have missed, or to tell me I have got a fact wrong — those last
two are the most useful messages anyone sends.
Don't ask me whether you should take something, stop taking something, or
what your symptoms mean. I am not going to answer that, and you should be wary of anyone
on the internet who would: they do not know your history, your other conditions, or
what else you take. Nothing on this site is medical advice and no reply from me will be
either. If it is about your own health, please take it to a clinician who knows you.