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Study summary · General aging biology & healthspan

What are the physiological and health effects of electrically conductive contact of the human body with the Earth's surface (grounding or earthing)?

In one paragraph

Grounding / Earthing Sleep Mat (J Inflamm Res 2015, PMID 25848315) — grounding appears to offer a new perspective for studying inflammation and is an important, often overlooked, factor in experimental animal studies that can influence outcomes related to inflammation, wound healing, and tumorigenesis. No numeric effect size is reported for Grounding / Earthing Sleep Mat in the source abstract.

Source: J Inflamm Res 2015, PMID 25848315 ↗ · Research map · How Magellan grades evidence · evidence confidence: low

J Inflamm Res · 2015 · PMID 25848315 · DOI 10.2147/JIR.S69656

Plain-English summary written and published by Magellan Longevity · medical review by Gabriel Radu, DO (physiatrist, NPI 1376861765). We summarize what the paper reported — we did not run this study.

The takeaway

Connecting with the Earth through grounding may influence inflammation, immune responses, and wound healing by altering white blood cell counts and inflammatory molecules.

The question

What are the physiological and health effects of electrically conductive contact of the human body with the Earth's surface (grounding or earthing)?

What they tested

Grounding an organism produces measurable differences in the concentrations of white blood cells, cytokines, and other molecules involved in the inflammatory response, and can influence outcomes of studies on inflammation, wound healing, and tumorigenesis.

How they did it

The report synthesizes multi-disciplinary research findings and presents several hypotheses based on current research results and understanding of electronic aspects of cell and tissue physiology, cell biology, biophysics, and biochemistry. It also references studies using delayed onset muscle soreness as an experimental injury to monitor immune responses under grounded versus ungrounded conditions.

What they found

Electrically conductive contact with the Earth produces intriguing effects on physiology and health, relating to inflammation, immune responses, wound healing, and prevention and treatment of chronic inflammatory and autoimmune diseases. Grounding reduces pain and alters the numbers of circulating neutrophils and lymphocytes, and affects various circulating chemical factors related to inflammation.

What it means

Grounding appears to offer a new perspective for studying inflammation and is an important, often overlooked, factor in experimental animal studies that can influence outcomes related to inflammation, wound healing, and tumorigenesis.

Limitations

The report primarily informs researchers and alerts them to potential factors, rather than presenting new experimental data. It also highlights the need for researchers to consider the length of time and degree of grounding, implying these are often overlooked.

“grounding produces measurable differences in concentrations of white blood cells and cytokines”— from the published abstract, J Inflamm Res 2015

The paper at a glance

Magellan’s evidence label	conductive Earth contact (our label for this citation — see PubMed for the paper’s own title and authors)
Journal	J Inflamm Res
Year	2015
PMID	25848315 ↗
DOI	10.2147/JIR.S69656 ↗
Topic	General aging biology & healthspan

Read the source: PubMed record (authors, abstract, full citation) ↗ · Publisher via doi.org ↗

Where Magellan uses this paper

This citation sits behind the evidence grade on the pages below. Grades are set from the research and are independent of affiliate commissions.

Grounding / Earthing Sleep Mat

May reduce chronic inflammation. Research relevant to this mechanism is indexed on PubMed and linked below; it describes the mechanism rather than this specific product.

Cite this page

These citations point at this summary. To cite the original paper with its full author list, use the PubMed record or doi.org.

APA

Magellan Longevity. (2026). What are the physiological and health effects of electrically conductive contact of the human body with the Earth's surface (grounding or earthing)? [Plain-English summary of J Inflamm Res 2015, PMID 25848315, DOI 10.2147/JIR.S69656]. Magellan Longevity. https://magellanlongevity.com/study/s192.html

BibTeX

@misc{magellan_s192,
  title        = {What are the physiological and health effects of electrically conductive contact of the human body with the Earth's surface (grounding or earthing)?},
  author       = {{Magellan Longevity}},
  year         = {2026},
  howpublished = {\url{https://magellanlongevity.com/study/s192.html}},
  note         = {Plain-English summary of PubMed PMID 25848315; DOI 10.2147/JIR.S69656; J Inflamm Res 2015. Reviewed by Gabriel Radu, DO},
  urldate      = {2026-08-11}
}

Permalink

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How this summary was made. Every section above restates what the published abstract of PMID 25848315 reports — the question, the design, the numbers, the authors’ own conclusion and their stated limitations. We do not add claims the paper did not make, and we keep negative and no-effect findings in. Magellan’s evidence grades are set from research like this and never from affiliate commissions.

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Educational information, not medical advice. This is a plain-English summary of published research; it is not a treatment recommendation and nothing here is intended to diagnose, treat, cure, or prevent any disease. Individual studies can be wrong, and a single paper rarely settles a question. Talk to your physician before acting on any research, especially if you are pregnant, nursing, or taking medication.