A root cause could be anything like poor digestion, excessive heat, bad circulation, depression, or bad hormones. A root cause could even be just the organ that is giving the problem. So a person with asthma could have weak lungs that are the root cause of the problem. The last and the most important concept of acupressure is pulse reading. A pulse as in acupressure is defined as a point in the arm that can be felt to determine the flow of energy in a meridian.
Pulses are imaginary, just like the meridians.
There are nine different pulses that are located in the lower arm area that connects to the wrist. If the pulse is absent in the superficial phase, it can be found in the deep phase. Usually, if a pulse is absent in the superficial phase, it indicates that there is a problem in that particular meridian. Deep pulses are usually very hard to locate and if the deep pulse is also absent, the person is said to be in the most severe stage of the problem. Pulse reading is done by feeling the pulse and following the rhythm, beat, speed, and the characteristic feeling of the pulse.