What is the Schuman Resonance?
Schumann Resonance is said to be the frequency that electro-magnetic waves travel around the earth’s ionosphere. Whether or not this is the case and I have seen some doubts cast on this, studies show that it can be useful in that: PET scans show that cerebral blood flow in the back of the brain occurs most at this frequency (P. Fox, M. Raichle). Studies of the most advanced meditators have repeatedly shown 7.8 to be a significant frequency (M. Cade).