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Yin and yang are the basis of traditional Chinese medicine. Says the classic book of the Yellow Emperor, the Huang Di Nei Jing: 

“The doctor who distinguishes yin and yang knows how to improve life.”

The yin and yang theory is the foundation of all eastern science and the backbone of Traditional Chinese Medicine (TCM). It is a fundamental component in comprehending Chinese language, culture, and ideas since it serves as a basis for classifying and ordering the cosmos.

The Yin and Yang symbol is a circle divided into two parts by a sinuous line. The black part represents Yin and the white part represents Yang.

You can visualize here how opposites forces also need each other and must coexist in balance and harmony to achieve their highest possible degree of excellence.

Some examples of these opposing forces that coexist in the universe are:

  • Day and night
  • Fire and water
  • Summer and Winter
  • Sound and silence
  • Man and woman

Yin identifies with the feminine. It represents the cold, passive, and dark polarity of things.

Yang identifies with the masculine. It stands for the hot, active, and bright polarity of things.

The exchange between yin and yang must be harmonious.  Although one of them may stand out over the other at certain times, a global balance should be kept in the long run.

If this balance remains disturbed, then health becomes precarious and diseases appear.

According to Traditional Chinese Medicine, all disease is due to an imbalance between Yin and Yang forces.

Any disease diagnosis and treatment can be reduced to the Yin – Yang theory. All its signs and symptoms can be classified in light of this theory where there are only four possible disorder manifestations.

The four manifestations of disease in our bodies and its treatment are:

Excess of Yang

Excess of heat, whether internal or external. Exhausted organic liquids produce dryness in mouth and throat. Also called excessive heat illness.

Treatment: Dispel the Yang in excess

Excess of Yin

In this case, the predominant condition is Yin, cold. An excess of cold puts out the heat of the Yang. There are nocturnal headaches, feeling cold, pale. Symptoms get worse with rest and improve with activity.

Treatment: Dispel the excess cold, yin energy.

Yang deficiency

Yang’s lack of heat causes cold; it is a deficiency of heat, not an excess of cold. Referred to as “cold by a lack of heat”. Some symptoms are: Aversion to cold, chilly extremities, pale tongue, slow pulse, asthenia, not wanting to speak or move, copious clear urine, watery diarrhea with undigested food are some of the symptoms.

Treatment: Give heat, tone the Yang energy.

Yin deficiency

From Yin’s deficit, general exhaustion of the body derives. It causes a simple heat called “deficiency heat”. Occurs with dry mouth and throat sensation, insomnia, irritability, warmth in the palms and soles of the feet, night sweats, and constipation.

Treatment: Tone up the Yin energy.

It is very important to know how to identify each of these to apply the correct treatment.

In excesses, the strategy will be to remove the extra, and in the insufficiencies to give what is missing.

Learn more about traditional Chinese medicine directly from our TCM specialists!



In the case of yin deficiency, all that is yin in the body is weakened, like blood and other vital fluids.

Heat will be the main symptom in the case of a Yin void. Yet, it is not an active heat as in yang`s excess. In a yin deficiency, the body is feeble, so the heat symptom will be subdued classifying as “empty heat.”

Characterized by a feeling of constant warmth with quick hot flashes, nervousness, and insomnia. There will be no fever, although there may be a low-grade fever.

Yin insufficiencies can be:

  • Lung Yin Deficiency
  • Kidney and Liver Yin Deficiency
  • Kidney and Lung Yin Deficiency
  • Stomach Yin Insufficiency

The symptoms of yin deficiency may vary according to the organ involved. Most common are night sweats, dry throat, dry cough, dry lips, dry eyes, dry mouth, thirst with a desire to sip.

Prevalent causes for Yin deficiency include long-term fevers, severe and long-lasting
diseases, prolonged drug therapy, senior age, or, in the case of women, menopause.


According to Chinese medicine, the kidneys are the center of the body’s yin and yang, the origin of life. The kidneys contain essential yin (kidney yin, true yin, or real water) and essential yang (kidney yang, true yang, or real fire)

Kidney yin is the foundation of the body’s organic Yin fluids. If this organic fluid does not properly hydrate the liver, symptoms of liver yin void will appear, red cheeks, evening fever, heat in the 5 centers (the palms, soles of the feet, and in the chest), hot flashes, and reddish tongue.

In the mental sphere, there is nervousness, insomnia, and irritability (yang is not contained by yin and rises to cause congestive headaches and mental disorders). Specific yang-type associated symptoms like blurred vision and vertigo can happen (but always within a Yin deficiency setting).

As Liver-Yin imbalances frequently lead to menstrual cycle disorders, irregular menstrual periods may happen and even infertility.

Excess heat injures the liver channel causing discomfort beneath the ribcage. If the yin weakness expands, it can cause yang hyperactivity and a more serious condition known as liver fire, worsening the disease. Headaches will appear violently and the patient quickly falls into fits of anger.

How to treat Yin deficiency

Stressors in our society and a poor diet reduce the quality of Kidney functions. The Liver and Gallbladder imbalances can also trigger a deficiency of Kidney and Liver Yin.

Shocking everyday news and hostile environments can make an emotional impact on our health. Kidney and Liver in particular.

Standard acupuncture treatment will focus on nourishing the Liver Yin and soothing the yang throughout the body.

Tone the Kidney Yin, drop the empty-heat, and pacify the Yang in the head. Heat must be purified if there are signs of fire in the liver.

Support this treatment with natural supplements and a Traditional Chinese Medicine diet for a complete recovery.

Not sure how it works? Learn more from our expert team for free!



The tips we provide here can help you avoid yin deficiency.

Supplements are not a replacement for a balanced diet, although they can be beneficial in some circumstances, such as pregnancy or the elderly.

Knowing how they work and when they’re necessary allows us to use them responsibly. Always avoid unjustified consumption.

Adequate Yin levels can be reinforced with supplements like Yin Maintenance. Produced by a team of experts with over 30 years of experience using nothing but 100% natural components created in the UK to the highest standards, so you are protected when compared to imported products. Helping in cases of:

Yin Maintenance cools the body while also removing harmful body heat and Yin deficiency symptoms.


From this dietary perspective, the following foods are harmful to the Kidney-Liver system:

  • Fried foods
  • Fatty foods
  • Alcohol
  • Salt
  • Sugar
  • Very hot food.
  • Excess caffeine
  • Dairy products, particularly milk

A diet focused on these foods will promote a Liver system imbalance.

The foods that strengthen the health of the Liver are:

  • Oatmeal
  • Rye bread
  • Broad beans
  • Chestnuts
  •  Zucchini
  • Green beans
  • Lemons
  • Limes
  • Avocado.

From a lifestyle point of view, the Liver’s job in TCM is to dispel anger and frustrations preventing them from harming the heart. Excessive expression (or repression) of these emotions might result in hepatic system imbalance.

High levels of stress can also create an imbalance in this system.

The Kidney-Liver-Gallbladder system strengthens with physical activity. As long as this system is allowed to enjoy healthy exercises (sports, walking, tai chi, jogging, etc.), along with favorable diet changes, the stagnation caused by stress and negative emotions such as resentment and anger will be resolved.

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* These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease. We can’t guarantee the treatment result, as the symptoms of conditions are unpredictable and vary greatly from person to person. The treatment length and recovery time also varies for individual. Please visit our clinics website: GinSen where a specialists will discuss your care and provide a consultation, and the treatment will be designed to meet your individual needs.

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