Grounding Doesn't Work

Grounding mats and barefoot walking promise to reduce your stress, boost your energy, and fix your sleep. The science says something else.

As kids, we ran barefoot all summer. Grass, dirt, the occasional gravel driveway at full sprint. We didn’t call it grounding. We never used a grounding mat. We were just outside barefoot. Does that mean we were healthier than kids wearing shoes?

According to a growing corner of wellness culture — yes. But the research says not so fast.

Today’s post covers:

• What grounding claims to do.

• The research behind it and why it doesn’t hold up.

• The $500 million grounding industry.

• The verdict.

People are walking barefoot on grass, sand, and trails. And wellness influencers are telling them it will reduce their stress, boost their energy, and help them sleep better.

This is called grounding. Or earthing.

The idea: your body absorbs electrons from the ground. Those electrons fight damaged cells. And that’s why we’re supposedly sick; because we wear rubber-soled shoes, sleep in elevated beds, and have lost our connection to the earth.

It sounds reasonable. Until you look at the research.

What the research actually says

There are almost no studies. And the few that exist wouldn’t pass a first-year research methods class.

One study on grounding had 16 participants — all massage therapists at the Chopra Center. Yes, that Chopra. The authors called it a randomized controlled trial. But it wasn’t.

Another study claimed grounding reduces heart disease risk. It had 10 people and no control group.

Yet another study tested grounding shoes on elite runners. No difference in performance, fatigue, or any physiological measure.

A 2025 review exploring grounding as an Alzheimer’s therapy called the evidence “preliminary” and said robust clinical trials are needed.

One recent study tested grounding on mouse cells in test tubes connected to a sink faucet. The researchers found small effects and called for more research. That’s a long way from barefoot walking healing humans.

There are other studies. They have similar problems.

No systematic review. No large trials. Published almost entirely in alternative journals.

It’s a starting point. A hypothesis. Not evidence.

There’s also a conflict of interest problem. Several researchers hold patents on grounding products. That doesn’t make the research wrong. But it’s worth knowing.

This is also a nearly $500 million industry, projected to reach $1.76 billion by 2035 (Metatech Insights, 2024). That’s a lot of grounding bed sheets, mats, shoes, and pillowcases.

Bad science and big business coexist in wellness. The placebo effect is powerful. People buy a $90 grounding mat, use it, and feel better. When the claim is “I feel better,” nobody can argue.

So why is grounding so popular?

People are more disconnected from nature than ever — more screens, more indoor time, more chronic stress. Grounding taps into that anxiety. It feels true because most of us have felt better after being outside. Grounding gives that feeling a scientific-sounding explanation.

Add social media, an “ancient wisdom” frame, and a new wellness product category — grounding mats, sheets, shoes, bands — and you have a booming industry built on a feeling. There’s even a documentary. That’s how you know it’s gone mainstream.

The verdict

Here’s what is true: being outside makes most people feel better. Fresh air, sunlight, movement, green space — all of it has evidence behind it. One study found that women who did 12 weeks of barefoot walking outside reported better sleep, less stress, and improved quality of life compared to women who did nothing. But they were also walking outside for an hour, three times a week. Of course they felt better.

Hard to credit the electrons.

You can’t patent a walk in the park. So wellness companies took something free and added conductive materials and a price tag, and then sold it back to us.

Grounding is not proven to work.

The grounding mat on Amazon is not medicine.

It’s a $90 placebo with good marketing.

As kids, we weren’t grounding. We were just outside. Turns out, that was enough.

Facts, no fluff - Heather

I’m a health researcher and professor. Every month in Field Notes — my post for paid subscribers — I do this for one viral wellness claim. One headline. One verdict. If you want facts, not fluff delivered monthly, upgrade.