Look at the difference. Select Earth's Pulse above — the tissues that respond strongest are brain, muscles, and thyroid. The ones that run your timing, coordination, and energy. Outside on a course, at ground level in open air, you're immersed in the Earth's native 7.83 Hz signal — the Schumann resonance fills the atmosphere around you.
But there's a deeper level most golfers miss. Your body is electrical — and direct contact with the Earth brings it back into balance. Not charging you up like a battery, but equalising — like water finding its level. Rubber-soled shoes insulate you from that connection. Leather soles or bare feet let you ground properly. A balanced system runs more efficiently — and efficiency is performance.
Now select WiFi. Inside a simulator bay, you're surrounded by routers, screens, and wiring — cut off from the Earth's signal entirely. The tissues absorbing the most are no longer your performance tissues. They're blood, reproductive organs, and heart — responding to signals they were never built for.
Same golfer, same swing, different electromagnetic environment. One supports the biology behind your game. The other works against it.
Select Cell Phone above and look at what's absorbing the most: blood, kidneys, testis, heart. Now use the distance selector — switch from "In pocket" to "Across room." Watch the bars drop.
Your phone in your front pocket sits centimetres from some of the highest-absorbing tissues in your body. Published research shows that artificial EMF exposure triggers oxidative stress in cells, disrupts calcium signalling, and suppresses melatonin — your primary recovery hormone. These aren't fringe claims. They're in peer-reviewed journals.
Leave your phone in the bag. That one habit changes the equation for every round you play.
The absorption data comes from the IT'IS Foundation (ETH Zurich, Switzerland) — one of the world's leading databases on how electromagnetic fields interact with the human body. Their tissue properties database is used by researchers, governments, and medical device manufacturers worldwide.
Each tissue has a measured dielectric permittivity — a precise value describing how much energy it absorbs at each frequency. We normalised these values to a 0–100 scale so they're easy to compare. The exact numbers behind every bar are real measurements, not estimates.
Each device operates across a range of frequencies — not a single one. The values shown are representative, chosen to illustrate how tissue absorption shifts as frequency changes.
Regulators set SAR (Specific Absorption Rate) limits on every phone sold specifically because they acknowledge absorption matters. The data behind this tool is the same science those limits are based on.
On a course you're at ground level, outdoors, immersed in the Earth's 7.83 Hz signal — the frequency your body evolved with. Sunlight, open air, natural ground beneath you, and far less artificial interference. The tissues that respond strongest are the ones running your performance: brain, muscles, thyroid, nervous system.
On an indoor range or in a simulator, you're surrounded by artificial frequencies from lighting, WiFi, and wiring — and shielded from the Earth's signal by concrete, metal, and walls. Your body is absorbing frequencies that create oxidative stress and interfere with your nervous system's own signals.
That post-round feeling isn't just fresh air. It's your body in the electromagnetic environment it was built for. And if you add direct ground contact — leather soles or bare feet — you complete the connection. Your body comes into electrical balance with the Earth. Not charged up, just balanced — and a balanced body runs more efficiently.
Current safety standards were set in the 1990s. They only protect against thermal effects — the point where radiation heats tissue. If your phone doesn't cook your brain, it passes.
But the research that's emerged since shows biological effects well below thermal thresholds. Oxidative stress, hormonal disruption, DNA strand breaks — all documented at everyday exposure levels. Thousands of scientists have signed appeals asking regulators to update these outdated limits.
The science exists. The standards just haven't caught up. Meanwhile, the industries producing these devices have no incentive to tell you about it. That's why we built this tool — so you can see the data yourself and decide what to do with it.
Start with one thing. Then the next one becomes obvious.
Phone — airplane mode when you're not using it. In the bag during rounds, not your pocket.
Headphones — wired, not Bluetooth. The distance selector above shows you why.
WiFi — turn it off at night. Then cable up with ethernet and remove it completely. Same internet, zero radiation.
Home — switch off what you're not using. Every appliance, charger, and screen left on adds to the load your body carries all day.
When you can't be in nature — we recommend specific products that lower your exposure at home, at work, and while you sleep.
Go deeper — a building biologist can measure the exact exposure in your home. Most people are shocked by what they find.
You don't need to change everything at once — you just need to start. Our Eight Week Foundation course walks you through it step by step.