Attn: Dr. Bob, your thoughts on earthing/grounding?
When the body and the Earth’s surface come in contact, their potential equalizes. Since the Earth’s surface is the most negatively charged of the 2 conductors, electrons are transferred from the Earth’s surface to the body. Maintaining the contact between the 2 conductors results in a constant exchange of low frequency electromagnetic fields and electrons that prevent external electromagnetic field to penetrate the body (this is especially true for external low frequency electromagnetic fields, i.e. less than 100,000 Hz) thus maintaining the internal electrical condition of the body into a homeostatic electrical state stabilizing our body’s internal electrical environment. This is the Faraday cage effect.
Some critics have absurdly claimed that it is harmful to ground yourself in the presence of EMFs or that the EMFs will interfere with the grounding process. They say that your body will act as an antenna and draw these EMFs into your body. First of all, there is no such evidence for any of this. Quite to the contrary, the grounding studies have been conducted in homes, offices, and facilities where EMFs were present. Two studies (references 20 and 21) show that grounding significantly reduces voltage induced on the body from EMFs. The first, the Applewhite study from 2005, showed a voltage reduction by a factor of at least 70. The Brown study, conducted in 2015, showed that even being close to a monitor, desk lamp, scanner and wireless phone, the AC current generated though the body of a grounded person from their combined EMF emissions is less than 1,800 the minimum perceptible current (1 milliampere) at a distance of 3 feet and less than 380 times while touching the lamp. Such a current is absolutely negligible. Not one of the 50 subjects who participated in the study felt anything.