The Earth has its own magnetic fields, produced primarily by fluxes in the molten metal in the outer core of the planet. This magnetic field extends from the interior of the planet to where it meets the solar wind, which emanates from the Sun. The main purpose of this field is to protect the planet from solar winds, which would otherwise destroy the protective ozone layer in our atmosphere.
Earth’s magnetic fields are comprised of a variety of sources, including the overall “static” field of the planet, magnetic rock formations, Schumann resonances, solar flares, tectonic plate movements, telluric currents on the planet’s surface, and cosmic radiation. Each of these contributes in its own important way to the overall magnetic environment in which humans have evolved – the human body is germinated, develops as an embryo, and grows into the human adult totally immersed throughout its entire lifespan within the Earth’s magnetic fields.
Because these magnetic fields are non-constant, currents are always being induced in a human body in motion. Even simple movements like bending or rotating the arms can induce currents of varying strengths within the body. Life and human functioning is dependent on these currents. We routinely see that when people stop moving around, they lose muscle mass, vitality, and function. Space program managers are keenly aware that it is not just a lack of gravity that has a negative impact on astronauts’ bodies, but the lack of the Earth’s magnetic field.
Along with Earth’s basic static field, the Schumann resonances make up what people tend to refer to as a set of “earth-based frequencies.” The Schumann resonances are a set of peaks in the extremely low frequency portion of the Earth’s electromagnetic spectrum, between about 3Hz and 60Hz, with obvious peaks at 7.83 Hz, 14.3 Hz, 20.8 Hz, 27.3 Hz, and 33.8 Hz. It is likely the magnetite present in human tissues that transmit the frequencies of the Schumann resonances throughout the brain. These resonate with environmental EMFs to create uniform frequency synchronization throughout the brain.
It is generally accepted in the community that the Schumann resonances are an important baseline from which the human brain maintains homeostasis. This range of frequencies has also been shown in various studies to be an important part of how the body heals itself. Schumann frequencies resonate mostly on the same frequency bands as the human brain and therefore can strongly affect brainwave function.
In addition to these naturally occurring magnetic fields, the Earth is now also bathed in artificial electric and magnetic fields created by man. These include televisions, microwaves, power lines, and cell phones, among many other sources.