• forest floor for children changes immune system

    From RS Wood@21:1/5 to All on Fri Oct 30 12:53:02 2020
    From the «maybe no bears though» department:
    Title: Daycares in Finland Built a 'Forest Floor', and It Changed Children's Immune Systems
    Author: martyb
    Date: Thu, 29 Oct 2020 07:30:00 -0400
    Link: https://soylentnews.org/article.pl?sid=20/10/28/223216&from=rss

    upstart[1] writes in with an IRC submission for AzumaHazuki:

    Daycares in Finland Built a 'Forest Floor', And It Changed Children's Immune Systems[2]:

    Playing through the greenery and litter of a mini forest's undergrowth for
    just one month may be enough to change a child's immune system, according to
    a small new experiment.

    When daycare workers in Finland rolled out a lawn, planted forest undergrowth such as dwarf heather and blueberries, and allowed children to care for crops in planter boxes, the diversity of microbes in the guts and on the skin of young kids appeared healthier in a very short space of time.

    Compared to other city kids who play in standard urban daycares with yards of pavement, tile and gravel, 3-, 4-, and 5-year-olds at these greened-up
    daycare centres in Finland showed increased T-cells and other important
    immune markers in their blood within 28 days.

    "We also found that the intestinal microbiota of children who received
    greenery was similar to the intestinal microbiota of children visiting the forest every day," says[3] environmental scientist Marja Roslund from the University of Helsinki.

    Prior research[4] has shown early exposure to green space is somehow linked
    to a well-functioning immune system, but it's still not clear whether that relationship is causal or not.

    The experiment in Finland is the first to explicitly manipulate a child's
    urban environment and then test for changes in their micriobiome and, in
    turn, a child's immune system.

    While the findings don't hold all the answers, they do support a leading idea
    - namely that a change in environmental microbes can relatively easily affect
    a well-established microbiome in children, giving their immune system a
    helping hand in the process.

    Journal References:


    1.Marja I. Roslund, Riikka Puhakka, Mira Grönroos, et al. Biodiversity intervention enhances immune regulation and health-associated commensal microbiota among daycare children [open], Science Advances (DOI: 10.1126/sciadv.aba2578[5])
    2.Payam Dadvand, et. al., The Association between Lifelong Greenspace Exposure and 3-Dimensional Brain Magnetic Resonance Imaging in Barcelona
    Schoolchildren, Environmental Health Perspectives (DOI: 10.1289/EHP1876[6])

    ------------------------------------------------------------------------------

    Original Submission[7]

    Read more of this story[8] at SoylentNews.

    Links:
    [1]: http://soylentnews.org/~upstart/ (link)
    [2]: https://www.sciencealert.com/daycares-in-finland-built-a-backyard-forest-and-it-changed-children-s-immune-systems (link)
    [3]: https://www.helsinki.fi/en/news/life-science-news/a-forest-based-yard-improved-the-immune-system-of-daycare-children-in-only-a-month (link)
    [4]: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5635058/ (link)
    [5]: https://doi.org/10.1126/sciadv.aba2578 (link)
    [6]: https://doi.org/10.1289/EHP1876 (link)
    [7]: http://soylentnews.org/submit.pl?op=viewsub&subid=44975 (link)
    [8]: https://soylentnews.org/article.pl?sid=20/10/28/223216&from=rss (link)


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  • From JAB@21:1/5 to rsw@therandymon.com on Sat Oct 31 22:47:44 2020
    On Fri, 30 Oct 2020 12:53:02 -0000 (UTC), RS Wood
    <rsw@therandymon.com> wrote:

    greened-up daycare centres in Finland showed
    increased T-cells and other important
    immune markers in their blood within 28 days.

    So, their immune system was engaged...but is it relevant?


    Prior research[4] has shown early exposure to green space is somehow linked >to a well-functioning immune system, but it's still not clear whether that >relationship is causal or not.

    Well, give them the Covid test..."Well=functioning," now there's a
    mouthful.

    Source Article says:

    Observational studies have demonstrated that immune-mediated diseases
    are more frequent in populations adopting modern urban lifestyles than
    in populations with a preindustrial lifestyle (1-3). One of the
    leading hypotheses argues that the core reason for this pattern is the
    evident biodiversity loss in modern living environments (3-6).
    However, conclusive evidence based on human intervention trials is
    still lacking.

    <https://advances.sciencemag.org/content/6/42/eaba2578>

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