O.K. so the earth emits those frequencies in this range.
Secondly, our brain state frequencies are roughly 0-30 hertz from low delta to high beta (with alpha and theta in between). So our brains ALSO function at these earth based frequencies.
Next based on studies by Adey and Bawin, Sisken and Walker and others, it seems that our cells also respond to this frequency range from roughly between 0-30 hertz.
And finally (and most interesting to me), based on studies done by Zimmerman on energy healers and Seto on Chi Kung Practitioners; it also appears that we as human beings, actually EMIT these very same frequencies.
So the Earth gives off these frequencies, we absorb these frequencies, our brains are tuned to these frequencies and we even EMIT these frequencies... When I first understood this, I got goosebumps... Of course! It was obvious, these ARE the frequencies we need and science confirms our intuition.
This extends the idea of the body-mind connection to the body-mind-earth CONNECTION. We are dependent on earth based PEMF as a necessary element just like food, water, oxygen and sleep.
Check out PART 2 of this PEMF Review site for more detailed research on the above mentioned studies.