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Magnetic Insoles as Placebos

Magnetic medical devices are a $5 billion/year worldwide industry–an estimated $500 million/year in the United States alone–yet there’s little to no evidence that they work to relieve pain. Here’s more evidence that they don’t: “Magnetic shoe insoles did not effectively…
September 26, 2005

Magnetic medical devices are a $5 billion/year worldwide industry–an estimated $500 million/year in the United States alone–yet there’s little to no evidence that they work to relieve pain. Here’s more evidence that they don’t: “Magnetic shoe insoles did not effectively relieve foot pain among patients in a study, researchers report in the current issue of Mayo Clinic Proceedings.” Kudos to the doctors for publishing their negative results, even though the study’s materials were provided by Spenco Medical Corp., a company that makes magnetic medical devices. (Think the company will mention the study in their advertising?)

What’s interesting, though, is that the magnetic insoles provided relief to patients who believed they would: “…the results indicate that patients who strongly believed in magnets had pain relief even if they were given false magnets to wear.” More evidence that the placeo effect can provide real, positive, physical benefits if you only believe a medical treatment works.

I’ve had a long-standing problem with one of my ankles, and even though I don’t believe in magnetic therapy, I will admit that in my search for relief I spent $40 on a wrap-around sleeve that contains about six magnets that appear to be little more than kitchen magnets. It didn’t work. Yes, I should have listened to my rational side–or been more gullible.

Deep Dive

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Five poems about the mind

DREAM VENDING MACHINE I feed it coins and watch the spring coil back,the clunk of a vacuum-packed, foil-wrappeddream dropping into the tray. It dispenses all kinds of dreams—bad dreams, good dreams,short nightmares to stave off worse ones, recurring dreams with a teacake marshmallow center.Hardboiled caramel dreams to tuck in your cheek,a bag of orange dreams…

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lucid dreaming concept
lucid dreaming concept

I taught myself to lucid dream. You can too.

We still don’t know much about the experience of being aware that you’re dreaming—but a few researchers think it could help us find out more about how the brain works.

panpsychism concept
panpsychism concept

Is everything in the world a little bit conscious?

The idea that consciousness is widespread is attractive to many for intellectual and, perhaps, also emotional
reasons. But can it be tested? Surprisingly, perhaps it can.

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Illustration by Rose WongIllustration by Rose Wong

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