"Gauge-Field Theory" enables us to express clearly fractal structures that can be seen in a human body. A human body is created as a fractal structure: a nest of boxes. A fractal structure consists of different-sized units, and which can clearly be expressed by the relationship between gauges and fields. For the reasons, using the conceptions of "Gauge and Field" helps us to express what fractal structure an organ has.

For instance, imagine a fractal structure consisting of three-different-sized units, and which is shown in the figure below. In this fractal structure, the secondary-smallest unit consists of four smallest units; the third-smallest unit consists of four secondary-smallest units. Thus, if we define the smallest unit as a gauge, we can regard each of the secondary and of the third-smallest unit as a field consisting of four gauges and that consisting of sixteen gauges respectively. For instance, we can say that the secondary and third-smallest unit are different-sized fields with each other.

Next, consider why these structures are useful to express the fractal structure that can be seen in an organ. In an organ, a cell unit consists of cells: a small leaf consists of cell units; a large leaf consists of small leaves. This structure indicates fractal structure, and which is just the same structure as that already explained above. Thus, using the relationship between a gauge and a field enables us to express how an organ is created as a fractal structure.

Using the conception of "Field" also helps us express clearly the relative movements among organs. A human body is created as a relative system consisting of organs; thus, each of the organs always balances itself with other organs. This balance works as the stability of a human body, and which plays a major role not only in maintaining the health of a human body, but also in causing disease. Additinally, an organ and a group of organs can each be expressed as a field. For the reasons, the conception of "Field" is useful to express the relative movement among organs. This is the reason whey it is important to make good use of the conception of "Field."

Now, by using the conception of "Field," let us check relative movements among fields (organs). Imagine, for instance, a fractal structure consisting of three-different-sized units. In this fractal structure, we can check several kinds of relative movements among organs. For example, we can express three types of relative movements among organs. The figures below illustrate the three kinds of relative movements among fields (organs). As seen in the examples, the concept of "Field" is very useful for us to check various kinds of relative movements that can be seen in a human body.