What is Heat Stroke?

Heat stroke, also known as heatstroke or sunstroke, is a severe condition caused by the body’s inability to regulate its temperature in extreme heat. When exposed to high temperatures, especially with high humidity, the body's cooling mechanisms, such as sweating, become overwhelmed. This can lead to a rapid rise in body temperature, potentially causing damage to the brain and other vital organs. Symptoms include a high body temperature (above 104°F or 40°C), confusion, altered mental state, rapid breathing, and a lack of sweating despite the heat.

How Does TCM View Heat Stroke?

In Traditional Chinese Medicine (TCM), heat stroke is viewed through the lens of internal imbalances and disharmony. Unlike Western medicine, which focuses on the immediate physiological responses to heat, TCM considers various patterns of disharmony that may lead to the condition.

Identifying the correct pattern is crucial for effective treatment. Heat stroke in TCM can be caused by the invasion of external pathogenic factors such as Summer Heat, combined with internal imbalances such as Qi Deficiency or Dampness.

Causes of Heat Stroke According to TCM

One of the primary causes of heat stroke in TCM is the pattern known as Summer Heat Evil with Dampness. This condition arises when excessive heat combines with high humidity, leading to symptoms such as heavy sweating, thirst, irritability, and a feeling of heaviness. The heat disrupts the body's normal functions, while dampness obstructs the flow of Qi and Body Fluids, exacerbating the symptoms.

Another common pattern is Summer Heat with Heat Stagnation in the Liver and Gallbladder. This pattern is characterized by a combination of intense heat and internal heat accumulation, leading to symptoms like high fever, restlessness, and a red face. The stagnation of heat in the liver and gallbladder disrupts the body's ability to cool down, leading to more severe manifestations of heat stroke.

TCM Herbal Formulas for Heat Stroke

In TCM, the treatment of heat stroke depends on the underlying pattern. For Summer Heat with Dampness, formulas like Gui Ling Gan Lu Yin, which contains Talc (Hua Shi), are often recommended. Talc is known for its sweet and cold properties, helping to clear heat and resolve dampness.

For patterns such as Summer Heat with Heat Stagnation in the Liver and Gallbladder, formulas like Bi Yu San are used. This formula also includes Talc (Hua Shi) as a key herb, aiding in the treatment by clearing heat and relieving stagnation. Another common formula for addressing Summer-Heat and Damp-Heat in the Bladder is Liu Yi San, which similarly uses Talc (Hua Shi).

When Summer-Heat has led to a Deficiency of Qi, formulas like Qing Shu Yi Qi Tang, with American Ginseng (Xi Yang Shen), are utilized to augment Qi while clearing Heat. For more severe cases where Heat has penetrated the pericardium and caused Phlegm Fire, formulas like Zhi Bao Dan, which includes Water Buffalo Horns (Shui Niu Jiao), are recommended to clear heat and open sensory orifices.

Explore below some TCM herbal formulas used to address heat stroke, organized by formula type.

  • By Formula Type
  • Formulas that dispel summer-Heat and facilitate resolution of dampness
  • Formulas that dispel summer-Heat and augment qi
  • Formulas that clear heat and open sensory orifices
  • Formulas that dispel summer-Heat and clear heat

All "formulas that dispel summer-Heat and facilitate resolution of dampness" recommended for heat stroke

Formula Key herbs
Gui Ling Gan Lu Yin Talc (Hua Shi)
Bi Yu San Talc (Hua Shi)
Liu Yi San Talc (Hua Shi)

Acupoints for Heat Stroke

Acupuncture plays a significant role in TCM treatment for heat stroke. Specific acupoints are targeted to clear heat, restore balance, and alleviate symptoms. One such point is Weizhong (BL-40) located at the midpoint of the popliteal crease. This point is known for its ability to cool the Blood, clear Summer Heat, and relieve lower back pain.

Another important set of acupoints is Shixuan (EX-UE-11), found on the tips of the ten fingers. These points are crucial for clearing Heat, pacifying Interior Wind, and restoring consciousness, making them particularly useful in acute cases of Heat stroke where immediate relief is needed.

In summary, TCM provides a comprehensive approach to understanding and treating heat stroke by addressing the underlying patterns of disharmony and utilizing a combination of herbal formulas and acupuncture to restore balance and health.

Explore below some acupoints used to address heat stroke, organized by meridian.

  • By Meridian
  • Bladder Channel
  • Extra Points: Upper Extremities (EX-UE)
Weizhong BL-40

Weizhong BL-40

At the midpoint of the popliteal crease, between the tendons of biceps femoris and semitendinosus muscle.

Shixuan EX-UE-11

Shixuan EX-UE-11

On the tips of the 10 fingers.

TCM Herbs for Heat Stroke

Explore below some TCM herbs used to address heat stroke, organized by herb category.

  • By Herb Category
  • Herbs that clear heat and purge fire and/or clear summer heat
  • Herbs that clear heat and relieve toxicity
  • Herbs that open the orifices
  • Tonic herbs for qi deficiency
  • Herbs that dispel wind and dampness
  • Herbs that relieve food stagnation
  • Aromatic herbs that transform dampness
  • Herbs that drain dampness
  • Herbs that cool the blood

"Herbs that clear Heat and purge Fire and/or clear Summer Heat" recommended for heat stroke

Herb Formulas they belong to (if applicable)
Lotus Leaves (He Ye) Qing Luo Yin
Watermelons (Xi Gua) Qing Shu Yi Qi Tang
Lotus Stems (He Geng) Not applicable
Tamarind Fruits (Suan Jiao) Not applicable
Calcitum (Han Shui Shi) Not applicable
Lotus Leaf Calyxes (He Ye Di) Not applicable
Sweet Wormwood Herbs (Qing Hao) Not applicable

"Herbs that clear Heat and relieve Toxicity" recommended for heat stroke

Herb Formulas they belong to (if applicable)
Honeysuckle Flowers (Jin Yin Hua) Qing Luo Yin
Gotu Kola Herbs (Ji Xue Cao) Not applicable
Chinese White Olives (Qing Guo) Not applicable
Natural Indigo (Qing Dai) Not applicable
Pu'er Tea (Pu er Cha) Not applicable
Wax Gourd (Dong Gua) Not applicable

"Herbs that open the Orifices" recommended for heat stroke

Herb Formulas they belong to (if applicable)
Musk (She Xiang) Zhi Bao Dan
Borneol (Bing Pian) Not applicable
Camphor (Zhang Nao) Not applicable

"Tonic herbs for Qi Deficiency" recommended for heat stroke

Herb Formulas they belong to (if applicable)
American Ginseng (Xi Yang Shen) Qing Shu Yi Qi Tang
Ginseng Leaves (Ren Shen Ye) Not applicable
Hyacinth Beans (Bai Bian Dou) Not applicable