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The Grounded Truth: What Science Says About Earthing

  • Writer: Natalie Wescott
    Natalie Wescott
  • Jun 26
  • 5 min read

Updated: Jul 17

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The Science of Grounding: How Connecting to the Earth Impacts Your Health

Have you ever felt noticeably calmer after walking barefoot on the beach or lying in the grass? That sense of peace isn’t just in your head - it’s rooted in your body’s biology. This practice is known as grounding or earthing, and while it may sound simple, the science behind it is both compelling and profound.

Grounding refers to the act of making direct physical contact with the Earth’s surface whether through bare feet on the grass, hands in the soil, or even lying directly on the ground. This contact allows the body to absorb the Earth’s natural electrical charge. In doing so, it helps regulate many of the body’s systems and supports overall health in ways that are now being increasingly validated by scientific research.


What Happens in the Body When You Ground?

To understand how grounding works, it’s important to first understand the concept of electrical charge. Our bodies are electrical beings. Every cell communicates using tiny electrical impulses. But due to modern life (electronic devices, rubber sole footwear, synthetic flooring, and high levels of electromagnetic radiation) our bodies tend to accumulate a positive electrical charge, particularly in the form of free radicals.

Free radicals are unstable molecules that lack electrons. They roam the body in search of electrons, often stealing them from healthy cells, which contributes to oxidative stress, inflammation, and cellular damage.

The Earth, on the other hand, has a negative charge and is rich in free electrons. When we make direct contact with the Earth’s surface, our bodies absorb these electrons, which in turn neutralizes free radicals, reduces oxidative stress, and helps to bring the body’s electrical systems back into balance.


What the Research Shows

Over the past two decades, a growing number of studies have investigated the effects of grounding on human health. While more large-scale trials are needed, the preliminary data is promising and points to a range of benefits:

1. Reduced Inflammation

One of the most well-documented effects of grounding is its ability to reduce markers of inflammation. A 2010 study published in the Journal of Inflammation Research used thermal imaging to show significant decreases in inflammation in subjects who practiced grounding. This is thought to be due to the influx of free electrons from the Earth, which help neutralize harmful molecules that contribute to inflammation and cellular damage. (1)

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2. Improved Sleep and Cortisol Regulation

Grounding has been shown to help normalize daily cortisol rhythms. In a study published in the Journal of Alternative and Complementary Medicine (2004), participants who slept grounded for eight weeks experienced improved sleep and more balanced cortisol patterns. Since cortisol plays a central role in our stress response and circadian rhythm, this has broad implications for mental and hormonal health. (2)

3. Nervous System Support

Grounding activates the parasympathetic branch of the autonomic nervous system, which is responsible for rest, digestion, and recovery. Studies have demonstrated that even 30 minutes of grounding can shift the nervous system out of “fight or flight” and into a more relaxed state. This may help explain why people often report feeling calmer and less anxious after spending time barefoot outdoors.

4. Cardiovascular Benefits

A 2013 study in The Journal of Alternative and Complementary Medicine found that grounding can reduce blood viscosity (or thickness), which improves circulation and reduces cardiovascular strain. This could be especially beneficial for individuals at risk of heart disease, stroke, or poor circulation. (3)

Left column: Blood samples taken before grounding show red blood cells clumped together—leading to thicker, sluggish flow.  Right column: After just 40 minutes of grounding, cells appear more separated and smoother, indicating thinner, more fluid blood
Left column: Blood samples taken before grounding show red blood cells clumped together—leading to thicker, sluggish flow. Right column: After just 40 minutes of grounding, cells appear more separated and smoother, indicating thinner, more fluid blood

5. Immune System Modulation

By reducing inflammation and oxidative stress, grounding indirectly supports immune function. Some researchers theorize that grounding may help regulate immune responses by stabilizing the body’s internal bioelectrical environment, though more research is needed in this area.


How to Practice Grounding

The good news is that grounding is simple and free! The most effective way to practice it is by standing, walking, sitting, or lying down with direct skin contact on a natural surface such as grass, soil, sand, or unsealed concrete. Rubber-soled shoes act as insulators and block this connection, which is why going barefoot is ideal.


Here are a few practical ways to incorporate grounding into your daily life:

  • Walk barefoot on the lawn in the morning.

  • Sit outside on the ground while reading or praying.

  • Let your children play barefoot outdoors as often as possible.

  • Garden with bare hands in the soil.

  • Use grounding mats or sheets indoors if outdoor access is limited.

Aim for at least 20–30 minutes per day for optimal benefit, though even shorter sessions can be helpful.


A Return to Simplicity

Many people wonder why grounding isn’t more widely recommended by conventional health practitioners. One reason may be that it’s not a pharmaceutical or marketable product - it’s a free tool that can’t be patented or sold. But its accessibility is also what makes it so powerful!

Grounding serves as a reminder that healing doesn’t always have to be complicated. In fact, many of the tools that support our health are simple, available, and built into the natural rhythms of creation.

Our connection to the Earth is not accidental. It’s an intentional design, one that supports our bodies, calms our minds, and draws us back into rhythm with how we were meant to live. God has given us a simple yet powerful gift to support our healing and well-being. Let’s honor Him by embracing it with gratitude and intention!


Final Thoughts

Grounding may sound like a wellness trend, but it’s deeply rooted in both science and our God-given biology. Whether you’re navigating chronic illness, managing stress, supporting your kids’ health, or simply seeking a moment of peace, grounding is a simple yet profoundly effective practice.

Step outside. Take off your shoes. Touch the Earth. Your body and health will thank you.



Sources:

  1. Oschman, J. L., Chevalier, G., & Brown, R. (2015). The effects of grounding (earthing) on inflammation, the immune response, wound healing, and prevention and treatment of chronic inflammatory and autoimmune diseases. Journal of Inflammation Research, 8, 83–96. doi:10.2147/JIR.S69656

  2. Ghaly, M., & Teplitz, D. (2004). The Biologic Effects of Grounding the Human Body during Sleep as Measured by Cortisol Levels and Subjective Reporting of Sleep, Pain, and Stress. Journal of Alternative and Complementary Medicine, 10(5), 767–776. doi:10.1089/acm.2004.10.767

  3. Chevalier et al. (2013), „Earthing (Grounding) the Human Body Reduces Blood Viscosity…“, J Altern Complement Med, 19(2), 102–110

 
 
 

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