Science & Research
Grounding has been the subject of growing scientific interest for more than two decades.
Research continues to explore how reconnecting the human body with the Earth’s natural electrical field may support physiological balance, recovery, and overall wellbeing.
Below is a simplified, easy-to-read overview of findings across published studies.
Key Research Insights
Improved Sleep & Cortisol Balance
Several studies have observed that grounding may support more natural cortisol rhythms — the hormone closely related to stress and sleep cycles.
Participants often experienced deeper, more restorative sleep patterns.
Inflammation & Thermal Response
Thermal imaging studies (thermography) show noticeable reductions in areas of heat and swelling after grounding sessions, suggesting a calming effect on inflammation markers.
Nervous System Regulation
Grounding has been associated with a shift toward parasympathetic dominance — the body’s “rest, digest, and repair” mode — promoting calm, reduced tension, & emotional balance.
Circulation & Blood Flow
Research into blood viscosity and red blood cell behavior suggests grounding may support smoother blood flow and circulatory function.
Muscle Recovery & Athletic Performance
Athletes grounded during sleep or recovery periods reported improvements in post-exercise soreness, faster recovery, and reduced muscle damage indicators.
Bioelectrical Stability
Studies measuring body voltage show rapid changes when grounded, demonstrating the body’s ability to release excess charge and stabilize electrically.
How Terra Solum Supports This
Every Terra Solum sheet, pillowcase, and mat is woven with conductive silver fibers, creating a natural pathway for the Earth’s electrons — similar to standing barefoot on natural ground, but accessible indoors.
This helps restore the body’s natural electrical balance in a simple, effortless way.
Published Research & Studies
Nervous System, Stress & Mood Regulation
- https://earthinginstitute.net/wp-content/uploads/2016/07/Emotional-stress-study.pdf
Sleep, Cortisol & Rhythmic Regulation
- https://www.liebertpub.com/doi/abs/10.1089/acm.2004.10.767
- https://www.liebertpub.com/doi/pdfplus/10.1089/acm.2011.0820
- https://pubmed.ncbi.nlm.nih.gov/25748085/
Inflammation, Pain, Heat Patterns
- https://earthinginstitute.net/wp-content/uploads/2019/02/thermographycasehistories2004.pdf
- https://www.scirp.org/Journal/PaperInformation?PaperID=55445#.VSa19_nF_7A
- https://www.scirp.org/Journal/PaperInformation?PaperID=58836
Muscle Recovery, Athletic Performance
- https://earthinginstitute.net/wp-content/uploads/2016/07/Changes-in-Pulse-Rate-Study.pdf
Circulation & Blood Viscosity
- https://journals.sfu.ca/seemj/index.php/seemj/article/view/9/7
- https://www.dovepress.com/articles.php?article_id=23771
Bioelectrical Effects & EMF Studies
- https://earthinginstitute.net/wp-content/uploads/2016/07/Applewhite-Body-Voltage-study.pdf
- https://pmc.ncbi.nlm.nih.gov/articles/PMC3265077/
Grounding & Early Development
- https://earthinginstitute.net/grounding-help-for-premature-babies/
Bringing It All Together
Across sleep, inflammation, circulation, nervous system balance, and bioelectrical stability, grounding continues to show promising physiological effects.
Although research is ongoing, the consistent findings highlight one simple truth:
The human body responds to the Earth’s natural energy.
Terra Solum exists to help bring that connection back into your daily life — safely, naturally, and effortlessly.