How Magnetic Fields Change Your Brain’s Electrical Signals

How Magnetic Fields Change Your Brain’s Electrical Signals

From The Healthier Tech Podcast by Shield Your Body®

July 19, 2026 · 5 min

About this episode

This episode discusses how moderate static magnetic fields can alter electrical signaling in nerve cells and the implications for medical implants and MRI exposure.

New research reveals that moderate static magnetic fields—the kind produced by MRI machines and certain consumer devices—can alter the electrical signaling in your nerve cells, with effects that persist even after exposure ends. In this episode, I break down a recent study from Japan that examined how eighteen hours of magnetic field exposure reduced the function of voltage-gated potassium channels in sympathetic neuron-like cells. The researchers identified thirty-seven genes whose expression changed in response to the magnetic field, suggesting your nervous system activates protective pathways when exposed to these fields. In This Episode How magnetic fields affect the ion channels that control nerve cell excitability Why the effects persisted even after the magnetic field was removed What this means for people with medical implants or frequent MRI exposure One practical step you can take to reduce unnecessary magnetic field exposure Featured Study Read the full study: Effects of moderate static magnetic fields on voltage-gated potassium ion channels in sympathetic neuron-like PC12 cells See all studies at shieldyourbody.com/research

More episodes of The Healthier Tech Podcast

Explore listener stats, chart rankings, contacts and more on the The Healthier Tech Podcast podcast page.