This article has a correction. Please see:

Download PDFPDF
Drinking policies and exercise-associated hyponatraemia: is anyone still promoting overdrinking?
Compose Response

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.
Author Information
First or given name, e.g. 'Peter'.
Your last, or family, name, e.g. 'MacMoody'.
Your email address, e.g.
Your role and/or occupation, e.g. 'Orthopedic Surgeon'.
Your organization or institution (if applicable), e.g. 'Royal Free Hospital'.
Statement of Competing Interests


  • A rapid response is a moderated but not peer reviewed online response to a published article in a BMJ journal; it will not receive a DOI and will not be indexed unless it is also republished as a Letter, Correspondence or as other content. Find out more about rapid responses.
  • We intend to post all responses which are approved by the Editor, within 14 days (BMJ Journals) or 24 hours (The BMJ), however timeframes cannot be guaranteed. Responses must comply with our requirements and should contribute substantially to the topic, but it is at our absolute discretion whether we publish a response, and we reserve the right to edit or remove responses before and after publication and also republish some or all in other BMJ publications, including third party local editions in other countries and languages
  • Our requirements are stated in our rapid response terms and conditions and must be read. These include ensuring that: i) you do not include any illustrative content including tables and graphs, ii) you do not include any information that includes specifics about any patients,iii) you do not include any original data, unless it has already been published in a peer reviewed journal and you have included a reference, iv) your response is lawful, not defamatory, original and accurate, v) you declare any competing interests, vi) you understand that your name and other personal details set out in our rapid response terms and conditions will be published with any responses we publish and vii) you understand that once a response is published, we may continue to publish your response and/or edit or remove it in the future.
  • By submitting this rapid response you are agreeing to our terms and conditions for rapid responses and understand that your personal data will be processed in accordance with those terms and our privacy notice.
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.

Vertical Tabs

Other responses

Jump to comment:

  • Published on:
    Re: An Erroneous Conclusion

    We are pleased that Dr. Shephard agrees with our views. In contrast to his retrospective assertions, dispassionate analysis of what he has written in the past shows that his conversion to our drinking guidelines has occurred only with the publication of his most recent letter.

    Professor Shephard continues to be dismissive of most of the work of our Cape Town research unit [1, 2]. To our knowledge we have lar...

    Show More
    Conflict of Interest:
    None declared.
  • Published on:
    Textbooks and drinking policies

    Dear Sir

    There is one recent textbook which explains the problem and promotes 'sensible' drinking policies.

    Grant S, Lloyd E. Training and Performance in difficult environments. Crowood Press 2006.

    ISBN-10 1 86126 881 5 & ISBN-13 978 1 86126 881 5

    This was published in Dec 2006 and is planned to be readable for competitive and social athletes, coaches, physios and doctors b...

    Show More
    Conflict of Interest:
    None declared.
  • Published on:
    An Erroneous Conclusion

    Beltrami and colleagues are correct to castigate the continued over-ingestion of fluids by marathon runners [1]. This may be a relatively new insight for investigators in Cape Town, where reports of over-hydration first surfaced. However, if the authors of the present report [1] will reread my textbook (wrongly described as published in 1974!), they will discover that it contains advice on fluid intake for distance runner...

    Show More
    Conflict of Interest:
    None declared.
  • Published on:
    Exercise-associated hyponatraemia and medication

    I had been a sufferer of exercise-associated hyponatraemia for at least a year, when I was living on a farm, as a direct result of drinking bore water. Unlike most bores which are overmineralized and dirty, these ones tapped into deep aquifers, that sourced ultra purified water. Because the water is trapped under deep layers of dolomites and Saprolites, the only way it can travel deeper into the earth is by passing through the micro pores of rocks, which results in micro filtration and ultra purification.

    But humans are adaptable to drinking pure water and pure water alone isn't going to make a normal person hyponatraemic, I had at one stage performing a labour intensive job as a tree surgeon. Also, because I have ADHD, I am medicated with adder-all.

    My situation was quite rare because I was living on a farm, drinking bore water and had a job pruning trees in residential areas, in the city. There, one would sweat heavily and would be drinking city water, which is one recipe for water that has a good mineral trace element content to it, but going home later that evening meant a diet of pure drinking water or cooking foods in pure water. This messed me up and affected my clear state of mind, often its a state of delirium that you start to feel as one of the typical symptoms.

    But then I also go back to the adder-all, which may have some role in making me vulnerable, because its an amphetamine and similar to the way ecstasy makes people become wate...

    Show More
    Conflict of Interest:
    None declared.