Contact
Got a question, some feedback, or a better source for one of the countries? Email is the only channel, and a person reads it.
The easiest way to reach Dickle is by email. We read everything that comes in and usually reply within a few days.
Corrections and better sources
These are the messages we most want. If a figure looks wrong, if you can point at the primary study behind a row we have marked as untraced, or if you know of a clinician-measured stretched-length study for a country that isn't in the game yet, please send it.
Corrections are applied to the dataset and take effect across the game and every reference page at once. The methodology page explains what a row has to satisfy to make it in.
Anything else
Use the same address for questions about how the game works, bug reports, accessibility problems, press enquiries, or advertising and partnership enquiries.
For questions specifically about data and cookies, the privacy policy covers most of it, but you are welcome to write instead.
What we can't help with
We can't answer questions about your own body. Dickle publishes population averages from published studies. It isn't a clinic, nobody here is a doctor, and no figure on this site can tell you anything about an individual.
If something has changed, hurts, or has been quietly worrying you, please take it to a clinician. That's genuinely the advice, and it's the only medical advice this site gives.