When you tune a radio receiver to 107.7 MHz on your radio tuner or bandwave, you match the wave length or frequency of 107.7 MHz of the radio transmitter. This causes the receiver and the transmitter to vibrate and communicate at the same frequency or band wave; allowing you to hear sound. Living cells behave similarly to a radio transmitter and receiver.
In 1929 a Russian engineer named Georges Lakhovsky did research into the electrical nature of plant life. "He postulated that all living cells (plants, people, bacteria, parasites, etc.) possess attributes which normally are associated with electronic circuits. These cellular attributes include resistance, capacitance, and inductance. These 3 electrical properties, when properly configured, will cause the recurrent generation or oscillation of high frequency sine waves when sustained by a small, steady supply of outside energy of the right frequency. This effect is known as resonance. In electronics, circuits which generate these recurrent sine waves can be called electromagnetic resonators, but more commonly they are referred to as oscillators. Lakhovsky tells us that not only do all living cells produce and radiate oscillations of very high frequencies, but they also receive and respond to oscillations imposed upon them from outside sources. This outside source of radiation or oscillations are due to cosmic rays which bombard the earth continuously. This stupendous realization, achieved during the golden years of radio, not only led to a new method of healing by the application of high frequency waves, but broadened appreciation for the newly emerging field of hidden science known as Radionics or Radiathesia." (http://www.electrocultureandmagnetoculture.com/history.html)
"His research concludes that when these outside sources of oscillations are in sympathy, that is they are exactly the same frequency as that produced by the cell, the strength and vigor of that cell will be reinforced and become stronger. If, on the other hand, these outside frequencies are of a slightly different frequency, rather than reinforce the cell's native oscillations, they might dampen or weaken them, resulting in a loss of vigor and vitality for that cell. The cells of disease causing organisms within an infected person, produce different frequencies than that of normal, healthy cells. For people or plants suffering from disease conditions, Lakhovsky found that if he could increase the amplitude (but not the frequency) of the oscillations of healthy cells, this increase would overwhelm and dampen the oscillations produced by the disease causing cells, thus bringing about the demise of the disease causing cells trying to set up shop in the body. If he pumped up the amplitude of the disease causing cells, their oscillations would gain the upper hand and cause the person or plant to become weaker and more ill. Lakhovsky viewed the progression of disease as essentially a battle between the resonant oscillations of host cells versus the oscillations emanating from pathogenic organisms." (http://www.electrocultureandmagnetoculture.com/history.html)