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Electric and magnetic fields (EMF) are invisible lines of force that surround any electrical device that is plugged in and turned on. EMF are made up of waves of electric and magnetic energy moving together (radiating) through space. Electric fields are produced by electric charges and magnetic fields are produced by the flow of current through wires or electrical devices.
San Juan Island Chiropractor Mark Earnhart writes a column twice a month. He can be contacted through his Web site: sanjuanholistichealthcare.com