It started with a question that sounds like a joke and is not: did shoes give us anxiety?
The reasoning goes like this. Rubber soles on synthetic floors electrically isolate a human body from the Earth. Walk across a carpet and you can be sitting at thousands of volts relative to ground. Our ancestors spent every day with bare or leather-soled feet on soil. So maybe the modern nervous system is running slightly wrong because it is never grounded, and maybe that is part of why so many people feel keyed up all the time.
We looked into it properly, and the honest answer is: part of that is real, part of it is not, and the interesting part has never actually been tested. So we built the test.
What is real
The isolation is real. A body in a wired house floats at a small AC voltage from the wiring around it, and static charge from carpet really does reach thousands of volts. It is a high voltage with almost no stored charge, the kind that matters to sensitive electronics rather than to physiology, and touching anything grounded takes it to near zero in an instant. You can measure all of this yourself with a body-voltage meter that costs less than a pair of shoes.
The evolutionary story does not hold up. The human brain roughly tripled over about four million years, and footwear is vastly younger than any of the big expansions. Whatever shoes did to us, they did not build the brain that worries.
And the "earthing" research, the studies claiming that grounding improves sleep, cortisol, pain and stress, is thin. The trials are small, rarely blinded, and mostly written by people already selling the idea. Even sympathetic reviews say better trials are needed.
The confounder nobody has removed
Here is the problem with every grounding study and every grounding testimonial, including the ones we have felt ourselves: being barefoot on the Earth almost always also means being outside, moving, in daylight, away from a screen. Nature exposure lowers stress on its own, and the evidence for that is much stronger than the evidence for electrons.
So when someone stands on the lawn for ten minutes and feels better, nobody can say whether it was the electrons or the grass. Nobody has separated them.
That is a testable question, and it needs four conditions, not two. Footwear and grounding are separate variables, so each has to be varied on its own:
| Grounded | Insulated | |
|---|---|---|
| Barefoot | on the grass | on a foam mat laid on the same grass |
| Shoes | conductive-sole grounding shoes | ordinary rubber-soled shoes |
Same spot, same half hour, same slow walk, same weather as far as possible. The only thing that changes is what is between your feet and the ground. If grounding does anything, the two grounded arms should beat the two insulated arms. If the grass is what matters, barefoot should beat shoes regardless of grounding.
What we shipped
The four-arm grounding self-experiment is now a research-grade template on the citizen-science platform. It is the first experiment there where the subject is you rather than a coil on a bench. It runs as a 24-day randomized crossover: two blocks, four arms of three days each, order drawn by dice. Before you track anything, you measure your body voltage in all four setups to prove the arms are actually electrically different. That step comes first on purpose. A grounding product that does not change the reading is not grounding anyone, and that is a result too.
One possible draw of the 24-day crossover
- Barefoot, grounded
- Barefoot, insulated
- Shoes, grounded
- Shoes, insulated
You pre-register your prediction before day one, because expectation is the largest confounder in the published literature and a one-person study cannot be blinded for barefoot versus shoes. Then you log one line a day: resting heart rate, HRV, sleep, a stress rating, and the day's voltage reading. At the end you submit a confirmation or a refutation, and both count the same. The refutations are, if anything, more valuable to the open record.
Best grounding products of 2026 is the buyer's guide that goes with it, and it is an unusual one. We name no brands, because we have tested none. Every pick is a category, what to look for in it, and a test to run with the meter. The only product on the list we call essential is the meter itself. A grounding sheet plugged into an outlet with no ground, a mat used through socks, or grounding shoes worn on a wood deck ground nobody, and you would never know from feel. The page uses Amazon affiliate links and says so beside the picks; purchases help keep the platform free.
Best citizen science platforms of 2026 puts our platform next to Zooniverse, iNaturalist, eBird, SciStarter and Foldit, and says plainly what they do better. They have millions of volunteers feeding professional research. We are small, and we are a different kind of thing: on those platforms you contribute labour to someone else's study; on ours you run the experiment. That is the whole reason the grounding experiment can exist here and nowhere else.
What this is not
It is not a treatment for anxiety, and it is not medical advice. If anxiety is shaping your life, talk to a clinician. The question this experiment asks is narrower and, we think, worth answering: do the electrons matter, or was it the grass?
What comes next
Grounding is the first of a series. The same design, a one-person randomized crossover with the manipulation proven by a measurement before any tracking starts, applies to a long list of things modern life changed and nobody has tested within a single person: bright daylight versus artificial light at night, the background noise you stopped noticing, the CO2 in a closed room, temperature that never varies, movement spread through the day versus one workout, when you eat rather than what, and how often a notification makes your brain reorient. Those are being written up now.
If you have felt better barefoot on grass and would like to know why, the experiment is open. Bring a meter.