What Are Magnets
All magnets possess a property called polarity—a property that causes the magnet’s opposite ends — usually called the north and south poles — to attract each other. Poles that are alike - for example, two north poles side by side — will repel each other.
This discussion is about a very specific type of magnet — one that is used to relieve stress and physical discomfort.
All magnets attract iron. Magnetic power comes in different strengths, and is often measured in units called gauss (G). To put this power into perspective, the earth has a magnetic field with a strength of about 0.5 G; refrigerator magnets have a strength that ranges from 35 to 200 G; magnets marketed for the treatment of pain usually run between 300 to 5,000 G; and MRI (magnetic resonance imaging) machines widely used to diagnose medical conditions produce up to 200,000 G.
The vast majority of magnets marketed to consumers for health purposes (see the list below) are of a type called static (or permanent) magnets, that is, they have magnetic fields that do not change. Just exactly how magnets work to help relieve physical discomfort is not known, although there are many popular theories.
Examples of Products Using Magnets
• Shoe insoles • Water Filters• Mattress Pads• Joint Wraps• Belts • Pillows and Cushions• Bracelets and Other Jewelry• Air Filters
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