"Our use of energy for power and communications has radically changed the total electromagnetic field of the Earth.
Today, we swim in a sea of energy that is almost totally man-made."
Quote from the book Cross Currents by Dr Robert O. Becker
When I first started my electrical apprenticeship as an electrician some 36 years ago I was never given any information about the health effects of the product I was responsible for: Electricity.
We were trained in the safety aspects associated with my own personal safety as well as my fellow work mates.
We were trained in the safety aspects of an installations load characteristics to minimise fires, loading on electrical circuits and circuit breakers.
But most importantly electrical safety of the public to electric shock.
Unfortunately, my training fell short on really understanding how electricity effects a human being.