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The ADxS.org Project

The ADxS.org Project

Welcome to ADxS.org

We are

  • ad-free
  • independent (no donations or support from the pharmaceutical industry or lobby groups)
  • 100% handmade
    • We use AI as a research tool or for translation
    • All research is thoroughly reviewed and verified by people
  • Recognized as a nonprofit organization

ADxS is a technical term that refers to all forms of ADHD (subtypes) (ADHD-HI, ADHD-C, ADHD-I). As of March 13, 2023, we have been using the term ADHD to refer to all forms of ADHD.1

ADxS.org aims to provide a systematic overview of the medical and neurobiological factors relevant to understanding ADHD.

To the best of our knowledge, the topics “ADHD and Stress” and “ADHD and the Immune System” were first explored in such depth by ADxS.org.
ADxS.org strives to continually incorporate new research approaches; however, while the advantage of timeliness naturally comes with greater uncertainty regarding the reliability of the results when research findings have not yet been replicated.

A summary of the content can be found at ⇒ Summary from ADxS.org.
⇒ Table of Contents Lists all pages (sitemap) and corresponds to the menu structure of the compendium.

Naturally, not all descriptions are equally interesting to all readers.
As a work that is constantly evolving, the compendium also contains a great deal of detailed information that has not yet led to any conclusions. As is customary in scientific analysis, conclusions do not take shape until some time after the details have been analyzed.

Given the scope of the project and the complexity of the subject matter, it is likely that, despite our best efforts, some misunderstandings and errors have slipped through the cracks.
Constructive suggestions based on scientific evidence—aimed at correcting any misconceptions and improving and supplementing the explanations provided here and their accuracy—are always welcome.

Since June 1, 2021, ADxS.org has been operated by the nonprofit association ADxS e. V.

The Concept Behind ADxS.org

ADxS.org is a completely non-commercial project.

ADxS approaches ADHD from a scientific perspective, while ensuring that all topics remain accessible to interested people with ADHD. Therefore, technical terms are replaced with colloquial terms that are easy to understand or explained via tooltips (—hover your mouse over underlined words or tap them with your finger at, to display a definition). Introductory texts are designed to remain understandable even for beginners.

All facts are linked to sources that can be easily verified. In the age of fake news, the verifiability of facts is of particular importance.

Many topics include in-depth explanations (usually indented), ranging all the way to scientific data, facts, and explanations (often presented as expandable text). Occasionally, there are links to fairly general sources that explain the background information in a way that is easy to understand for people with ADHD or for non-experts.

The goal is to enable, for example, people with ADHD and doctors to discuss specific issues using a shared source of information.

Our own views and hypotheses are always identified as such so that readers can recognize our personal views, interpretations, or ideas for what they are.

The Goals of ADxS.org

The goal is

  • an expansion of the scientific/technical advisory board
  • an opportunity for other authors to submit articles
  • an opportunity for expert authors to present differing opinions, provided that such opinions are clearly identified as such and supported by reasoning
  • the inclusion of a wide range of accounts from people with ADHD.

ADxS.org expressly does not wish to adhere to the concept that a contribution or chapter must come from a single author or a closed group of authors. Experience has shown that discussion and knowledge-building are fostered when comments, additions (even just a few sentences), or longer texts are included within a post by other authors (with proper attribution).

ADxS.org is looking forward to

  • technical presentations and contributions to the discussion by scientists, physicians, and therapists
  • Case studies from the perspective of people with ADHD
  • Comments, suggestions for improvement, and suggestions for additions
  • different opinions supported by expert reasoning

Scientific / Technical Advisory Board

To the List of members of the scientific/technical advisory board of ADxS.org.

Publication Status

Since it is not otherwise possible to make this work freely available on the Internet, it will not be published by a scholarly publisher. To ensure it remains citable, a printed edition will be published from time to time.

The first edition of this project, as of April 2019, was published in print with ISBN 978-939384-99-1.


  1. Der von uns früher für die Gesamtheit aller Präsentationsformen verwendete Begriff AD(H)S wurde erstmals von Heinemann und Hopf verwendet: Heinemann, Hopf (2006): AD(H)S: Symptome - Psychodynamik - Fallbeispiele - psychoanalytische Theorie und Therapie ↥