Yinyang (yin-yang) is one of the most important concepts throughout the history of Chinese philosophy. Yin and Yang are integral to the Chinese culture for thousands of years. Yin and Yang are distinctively Chinese in terms of perception of profound fundamental principles and as an expression of a unique way of viewing the universe.

So what is Yinyang? Yinyang is the two complementary forces that make up all aspects and phenomena of life. Yin is a symbol of earth, femaleness, darkness, passivity, and absorption. Yang is conceived of as heaven, maleness, light, activity, and penetration. But nothing is absolute with Yin and Yang. The designation of something as Yin or Yang is always relative to some other thing. For example, day is Yang, yet within every day is a Yang part—the early morning, and a Yin part—late day, as it begins to turn to night, which is Yin.

There’s a dynamic flow happening that automatically and continuously balances and rebalances these Yinyang energies. In the natural world this phenomenon is seen in the changing of the seasons: the cold of winter yields to the warmth of spring and summer heat, and then gradually turns cool in fall to become winter once again. You can also see this perpetual balancing at work in a shorter time frame when a thunderstorm clears the air of an unusually hot and humid summer day.

The theory of Yin and Yang is fundamental to the practice of TCM in terms of understanding, diagnosing, and treating health issues. At the most basic and deep level, TCM treatment seeks to balance Yin and Yang in each person.

As to human body, there many ways to identify the Yinyang. For example Yin could be your right side of body, lower part of your body, inner side of the body or front side of your body. Yang is the opposite of Yin.  

If you are sick or unwell, then you have some symptoms or signs that show your imbalance of your Yinyang. Most common signs are leg discrepancy, scoliosis or twisted body shape. Symptoms include pain, cold limbs, leg discrepancy, Diarrhea, sleeping disorder, eczema, irregular menstruation etc.  If the balance is not restored most likely you will have chronic pain. You may have guts issues such as IBS. You may experience insomnia. You may have PMS conditions. You may feel fatigue all the time. You may have allergy conditions or catch cold easily or asthma. You may develop type 2 diabetes. You may have hypertension. If doctors have no solution for your chronic conditions, you may can get some help from TCM practitioner or acupuncturist. Miracles may happen all the time.