Meridian is the resonance passageway for energy in life message. As long as the
resonance frequency of the energy in the message is the same with that of the transmitter,
message energy can pass through. Therefore, no tangible tunnel is needed and meridian is not
found in dead body from anatomy. Energy measuring instruments, such as the thermograph, are
used to measure the energy in the meridian, the changes of the meridian and display the
existence of meridian itself. The carrier of life energy is far infrared (IR)
electromagnetic wave. By showing the transmission of far IR electromagnetic wave, the
passage way of energy in life message (meridian) is located. To prove the existence of
meridian and its function, before and after the acupuncture, position emission tomography
(PET) is used to display the condition of bio-molecule metabolism, receptor and
neurotransmitter on molecule level, single-photon emission computed tomography (SPECT) is
used to observe the mutual influence and change of blood in the Zang-Fu organ and meridian.
A living person has life message and meridian, while a dead person does not have any life
message and meridian.