Despite enormous research, it is not confirmed if a magnetic field surplus syndrome exists or not. Some users of magneto-therapy have experienced a rush of blood to the head as well as other symptoms. This could well be such a syndrome.
Regarding human bodies exposed to strong magnetic fields, researchers tested a 20,000 gauss field and from the results of this they conclude that, with the exception of some cases of toothache, no subjective symptoms were noticed when human beings were exposed to the field for a short time. It was also found that people working within strong magnetic fields are in good health.
The human race has been influenced by at least two physical phenomena – gravity and the earth’s magnetic field. The relationship between gravity and the human body and, in relation to recent space travel, the influence of a no-gravity condition on the human body have been the focus of sustained research. But, strangely, very little research has been done on the influence of the earth’s magnetic field on the human body.
In the field of biology and field science, there has been some research done on the influence on test animals shielded from magnetic fields. Some research has also been conducted on the effects on the human body of being exposed to a very weak magnetic field. However, the relationship between the earth’s magnetic field and the living body is still unclear.