However, very few people can be purely Yin or Yang. Most people are Yin in some things and Yang in other ones. When the Yang part increases, the Yin part decreases and vice versa. Disturbance of equilibrium of Yin and Yang leads to diseases.
Chinese doctors distinguish four main types of such disorders:
1. Excess of Yang and lack of Yin; 2. Lack of Yang and excess of Yin; 3. Excess of Yin and Yang at the same time; 4. Lack of Yin and Yang at the same time.
Some organs or parts of the body can be suffering from excess of Yang leading to corresponding diseases, while other organs can be lacking Yang, what also causes different diseases. P.P. Sokolov describes signs of excess or lack of Yin and Yang in the following way. P.P. Sokolov, Concept of time and health. Your Health, 1989, No. 3:
EXCESS OF YANG
Voice is too loud and sonorous. Eyes are very lively and too shiny. Quick gestures. A person gets overexcited when speaking. Excessive amusement, singing, laughing. Predisposition to high temperature. Fevers, local pains, predisposition to muscle tension, spasms. Feeling of pain in different points when pressing.
LACK OF YANG
Flabby flaccid body, paleness. Voice is not loud. Dull eyes. Lazy gestures. Speech problems. Tearfulness. Predisposition to night cough and fever. Excessive perspiration. Numbness in acupuncture points (when pressing).
EXCESS OF YIN
Red facial color. Strong body. Predisposition to fatness, abscesses, inflammations, intumescences, hyperemia. Inner shiver.
LACK OF YIN
Skinniness, bluish or blackish face. Puffiness. Paleness. Flabby body. Physical weakness, lack of energy. Laziness. Fatigability, passivity. Loses conscience easily.
As any disease is caused by increasing or decreasing of Yin or Yang (according to traditional Chinese medicine), by adding or removing the necessary amount of Yin or Yang you can cure any disease. Doctors following the principles of macrobiotics do that using usual products as the source of Yin and Yang because, as anything in this world, food can also be Yin or Yang.
Yin food cools you down, makes your body soft and passive. When there is an excess of it, it causes fatigue, sleepiness, paleness and loss of appetite. H. Aihara, one of the specialists in macrobiotics, advises not to consume more than two Yin products during the same meal, as it will be very hard for your organism to manage them. Long-time excess of Yin food leads to depression, tension and irritability.
During summer, when it is hot, it is recommended to eat more refreshing Yin food. Meanwhile, in winter it is better to consume mostly warm Yang food. In his book, called “Zen Macrobiotics”, G. Ohsawa gives the classification of products reproduced in table.
Table. Distribution of products from Yin (V) to Yang (Δ)
H. Aihara also gives a very clear classification of products in terms of Yin and Yang in his book “Popular Macrobiotics”. To be honest, there are some differences between the classifications of Aihara and Ohsawa. This is normal, as all people differ in their perception of the world. Moreover, the properties of products have changed in the new Yuga. In general, in our opinion, Aihara’s classification is more reliable.
Text: from the book A.Eddar “Treatise of nutrition”. Interpreter: Liza Dukhova