Is being prone to “internal heat” due to yin deficiency or yang deficiency?

Aug 24, 2022 Source: Cainiu Health

Dr. He Haochen

Introduction

Being prone to “internal heat” (a TCM concept) is often associated with Yin deficiency. When Yin is deficient, Yang becomes relatively excessive; since Yang is inherently warm or hot in nature, irritability and outbursts of anger are commonly seen in cases of Liver and Kidney Yin deficiency. In such cases, one may regularly drink herbal infusions made from *Polygonatum odoratum* (Yuzhu), *Dendrobium* (Shihu), *Ophiopogon japonicus* (Maidong), and *Lycium barbarum* (Gouqizi). However, if an individual is chronically prone to “internal heat,” the primary underlying cause is often emotional—such as frequent anger, habitual late-night activity, or high levels of stress from daily life and work.

Yin deficiency and yang deficiency are common syndromes in Traditional Chinese Medicine (TCM), yet most people lack a clear understanding of them—and particularly of the differences between the two. Although yin and yang deficiencies often do not produce overt or pronounced discomfort, they can severely compromise physical health and progressively weaken one’s constitution. So, is being prone to “internal heat” (excessive fire) associated with yin deficiency or yang deficiency?

Is being prone to “internal heat” linked to yin deficiency or yang deficiency?

Being prone to “internal heat” is typically associated with yin deficiency. When yin is deficient, yang becomes relatively excessive; since yang is inherently warm and active, this relative excess manifests as heat signs—such as irritability and outbursts of anger—commonly seen in liver-kidney yin deficiency. In such cases, drinking herbal infusions made from *Polygonatum odoratum* (Yuzhu), *Dendrobium* (Shihu), *Ophiopogon japonicus* (Maidong), and *Lycium barbarum* (Gouqi) may be beneficial for daily use. However, if one is chronically prone to “internal heat,” emotional factors are often the primary contributors—such as frequent anger, chronic sleep deprivation, or high levels of stress from work or daily life. Under professional guidance from a TCM practitioner, formulas like *Longdan Xiegan Wan* (Gentiana Liver-Draining Pill), *Jiawei Xiaoyao Wan* (Augmented Rambling Powder), or *Qing Wei San* (Stomach-Clearing Powder), as well as herbs like chrysanthemum and honeysuckle, may be recommended.

Yin deficiency refers to an insufficiency of the body’s yin energy, resulting in imbalance between yin and yang. Without adequate yin to nourish and anchor yang, the uncontrolled yang manifests as pathological heat, leading to various abnormal symptoms. Individuals with yin deficiency commonly experience restlessness, insomnia, dizziness, and night sweats. Some may also report weakness in the lower back and legs, or generalized fatigue and limb weakness. Prompt regulation and treatment are essential upon diagnosis of yin deficiency to restore normal physiological balance.

We recommend that patients maintain a light, balanced diet and engage in moderate physical activity to enhance overall immunity. We hope this information proves helpful to you.

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What should I do if I have yin deficiency with internal heat, as well as poor spleen and stomach function?

Under normal circumstances, internal heat due to yin deficiency accompanied by poor spleen and stomach function may be caused by factors such as dietary imbalance, emotional distress, chronic gastritis, irritable bowel syndrome, or stomach yin deficiency syndrome. Improvement can be achieved through lifestyle adjustments, medication, or other methods based on individual conditions. Avoid staying up late to prevent depletion of bodily fluids, and maintain focus during meals without distractions. Seek medical attention if symptoms such as dry mouth, sore throat, or worsening stomach pain occur.