Spectrum Analysis of Human Pulse

Pulse spectral graphs (PSG) were obtained from pulses taken on the wrist by using electronics and computers. Energy ratio (ER) is defined as the ratio of the energy of PSG below 10 Hz to that above 10 Hz. We find that the ER for healthy persons is above 100 at all three-finger positions on both wrists, but those for sick persons are below 100 at some specific positions of pulse-taking. The specific positions giving low ER values are related to the troubled organs, as would be expected from Chinese medicine. Potential application of this novel method in the health field is indicated.