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Name: mike s
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Do strong magnetic charges have any definite effect on the human body?

I assume you are asking about steady state magnetic fields (there are no magnetic "charges"), such as from electromagnets. Magnetic fields are measured in Tesla (T) or Gauss (G). The Tesla is a very large unit (1 T = 10,000 G). Most large magnets have fields less than a few T. Reported and documented effects on humans are few and of low hazard potential: a strange taste sensation has been reported by some people who have metallic tooth fillings, in fields of 1.5 T; a person who put his hands in a 10 T field reported a feeling of cold, pain in his bones, and the feeling of ants crawling on his skin. Many tests on people have found no sensations and no effects from exposures to fields of several T. In a lab study, it was found that sickled red blood cells rotate in a 0.35 T field. The occupational exposure limit for magnetic fields is 0.06 T for whole body exposure eight hours per day, with exposures of up to 2 T allowed for partial body for shorter time periods. Strong magnetic fields may be hazardous to people who have metallic devices such as pins or plates implanted in their bodies, as the field may exert painful or damaging force on the metal part. And people who have implanted cardiac pacemakers must stay out of even weak fields (10 G or so) because their pacemakers may be affected.

Gary E Myers

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