Just to continue what has been posted previously, the scientific researcher Robert Becker, author of 'Cross Currents: Perils of Electropollution, the Promise of Electromedicine' has, like others, reinforced the notion of our present state of affairs by saying that:
"Our use of energy for power and communication has radically changed the total electromagnetic field of the Earth. Because we cannot directly perceive this with any of our senses, most of us are unaware that it has occurred. Before 1900, the Earth's electromagnetic field was composed simply of the field and its associated micropulsations, visible light, and random discharges of lightning. Today, we swim in a sea of energy that is almost totally man-made...
...the data obtained in the past few years indicate very clearly that we must now include the Earth's normal geomagnetic field as an environmental variable of great consequence when we deal with the basic functions of living things."
Why is the body so susceptible to magnetism - is their something inside us that responds to magnetic fields? More to come on this.