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Wind is one of the Six Excesses (Liu Yin, six pathogenic factors) and the leader among all pathogens. Therefore, the classics state that "wind is the chief of a hundred diseases" and also that "wind is the beginning of a hundred diseases." How profound! The phrase "agile in movement and variable in nature" (Shan Xing Shu Bian, referring to wind's tendency to move rapidly and change frequently) seems to fully describe the characteristics of wind. The discussions in this chapter vary in depth, but essentially, the principles of wind-induced diseases are all contained herein.

The Yellow Emperor asked: "When wind pathogen attacks the human body, it may manifest as cold-heat syndrome, heat-in-the-middle syndrome, cold-in-the-middle syndrome, leprosy (Li Feng), hemiplegia (Pian Ku), ... These diseases differ from one another and have different names; some penetrate deeply into the five zang and six fu organs. I do not understand the mechanism behind this and wish to hear your explanation."

Qibo replied: "Wind pathogen lodges between the skin and subcutaneous tissue. It cannot communicate inward nor be excreted outward. Wind is agile in movement and variable in nature. When the interstices (Cou Li, pores and skin texture) open, one feels chilly and cold; when they close, one experiences fever and chest oppression. (Note: This describes external contraction by wind pathogen. Pathogens should be resolved through sweating; internal unblocking leads to external release. Because internal communication is blocked, external excretion is impossible. Agile pathogens go everywhere; variable pathogens present diverse symptoms. Wind as a pathogen is indeed severe. When interstices open, wind flows out causing aversion to cold; when closed, evil qi stagnates internally causing heat and oppression. Treatment must involve releasing the exterior to bring peace.) If it manifests as cold, appetite declines; if it manifests as heat, muscles are consumed. Thus, it causes shivering and inability to eat, named Cold-Heat Syndrome. (Cold wind entering the stomach reduces food intake. Heat qi storing internally consumes muscle. Cold and heat combining cause shivering and anorexia, hence named Cold-Heat Syndrome. 'Li' refers to sudden chills. Note: Pronounced 'tu', meaning sudden forgetfulness. 'Li' means trembling, indicating involuntary shaking due to clashing cold and heat. Quan Qiyuan's edition and *Jia Yi Jing* read 'loss of taste' or 'dissolution', which are incorrect.)

When wind pathogen enters the Stomach along with the Yangming channel, traveling up the meridian to the inner canthus: In obese individuals, wind cannot escape outward, leading to Heat-in-the-Middle Syndrome with yellow eyes; in emaciated individuals, wind escapes outward, leading to Cold-in-the-Middle Syndrome with tearing. (Obese people have dense interstices, so wind cannot escape, causing heat accumulation and jaundice; emaciated people have loose interstices, allowing wind to escape, causing cold accumulation and lacrimation. Note: 'Zi' pronunciation.)

When wind pathogen enters with the Taiyang channel, circulating through various meridian Shu points and dispersing between the muscle layers, interfering with Wei Qi (Defensive Qi), the pathway becomes obstructed. This causes muscle swelling and ulceration. Since Wei Qi stagnates and fails to circulate, the flesh becomes insensate (Bu Ren). (Between muscle layers is where Wei Qi travels. Wind clashes with Wei Qi, both moving between muscles, causing obstruction. Obstruction allows wind to attack inward and Wei Qi to contend, resulting in swollen flesh and ulcers. Ulcer means sore. If Wei Qi is blown by wind and cannot flow freely, gathering and stagnating in specific areas, those areas become insensate. Insensate means lack of sensation to cold, heat, pain, or itch.) Leprosy (Li Feng) occurs when Ying Qi (Nutritive Qi) becomes hot and turbid, causing nasal collapse, facial discoloration, and skin ulcers. When cold-wind lingers in the meridians without departing, it is called Leprosy. (...This indicates wind entering the blood vessels. Ying Qi moves within vessels; thus wind enters vessels, attacking blood internally and combining with Ying Qi. Combined heat damages blood vessels. 'Turbid qi' refers to chaos. Blood vessel chaos combined with wind-carrying Ying Qi affects yang meridians ascending to the head. As the nose is the passage for respiration, nasal bridge collapses and complexion darkens, skin breaks and suppurates. *Mai Yao Jing Wei Lun* states: 'Wind in pulse becomes Leprosy.' Note: Among wind diseases, this is the most severe, hence named Leprosy. Often inherited from parents due to turbid essence and blood, firmly bound and transmitted, inevitably fatal. If wind entering Shu points and stagnating Wei Qi caused Leprosy, it would imply external origin, indistinguishable from hereditary cases. In summary, externally acquired cases are treatable; hereditary cases are difficult. Students must know this. 'Li' pronunciation.)

Wind contracted on Jia/Yi days in Spring affects the Liver Wind; on Bing/Ding days in Summer, Heart Wind; on Wu/Ji days in Late Summer, Spleen Wind; on Geng/Xin days in Autumn, Lung Wind; on Ren/Gui days in Winter, Kidney Wind. (Note: Five Zang correspond to Four Seasons as a fixed rule. However, pathogens enter where there is deficiency. Why must Spring affect only the Liver or Summer only the Heart? Profound understanding lies in individual application. Do not rigidly adhere to 'injury' vs 'strike'.)

Wind invading the Shu points of the five zang and six fu organs creates Wind of the Zang and Fu. (Note: Zang-Fu connections attach to the back, so their Shu points are on the back. 'Shu' refers to back acupoints. If Zang-Fu Qi is insecure, wind enters via Shu points. Wind entering Zang may manifest via Yin channels, while Fu via Yang channels. By examining pulses and differentiating syndromes, treatment can be applied accordingly. 'Shu' pronunciation.)

Wind entering its respective gateways (Shu points) asymmetrically results in Biased Wind (Pian Feng). (Entering Shu points on one side leads to Biased Wind. Note: Biased Wind refers to hemiplegia. Acupoints are like doors in a house; wind enters via these gates. If entry is biased to one side, disease manifests on that side, as seen in modern paralysis.)

Wind ascending along the Fengfu point leads to Brain Wind. (Note: Fengfu point is one cun above the hairline at the nape, inside the large tendons. Brain Wind involves wind entering the brain, causing dizziness and mild headache upon exposure to wind, with clear nasal discharge, similar to Nasal Sinusitis.) Wind entering the head's connecting tissues leads to Eye Wind and Cold Eyes. (Note: 'Connecting head/cold eyes' is hard to interpret; ancient texts likely contain errors.)

Drinking alcohol while exposed to wind leads to Leaking Wind (Lou Feng). (Note: Alcohol is pungent and warm, promoting circulation. Combined with wind, it causes sweat leakage and dispersion of True Qi.) Having intercourse with sweating followed by wind exposure leads to Internal Wind (Nei Feng). (Internal essence depletion opens interstices; wind attacks internally, hence Internal Wind.) Washing hair recently then exposed to wind leads to Head Wind (Shou Feng). (Note: Hair follicles are the most open orifices. Hot water washing opens interstices, inviting wind. All wind diseases cause headache, not just after washing.) Long-standing wind penetrating inward leads to Intestinal Wind and Undigested Diarrhea (Sun Xie). (Note: 'Zhong' refers to Spleen/Stomach. Spleen/Stomach belong to Earth. Prolonged wind strengthens Wood, which attacks Earth. Wind lodging in intestines causes failure to separate clear from turbid. 'Sun' pronunciation.)

Wind lingering in external interstices leads to Draining Wind (Xie Feng). (Wind in interstices opens pores, forcing sweat out, hence Draining Wind.)

Thus, wind is the chief of a hundred diseases. Its transformations lead to other illnesses without fixed patterns, yet the root cause is always wind presence. (Chief means preceding. Wind has sound but no form, qi but no substance. It exploits gaps and deficiency, striking suddenly unaware. Hence, wind is considered primary. Once in meridians, it changes endlessly, following deficiency, having no fixed location. Yet, disease stems from wind; though formless, its qi exists. Skilled diagnosticians observe complexion and palpate pulses to discern subtle signs. Yuan Qi edition and *Jia Yi Jing* interpret 'zhi' as 'attack', which seems disjointed.)

The Emperor said: "Why do wind manifestations differ among the five zang? I wish to hear about their diagnosis and pathology."

Qibo said: "Lung Wind presents with excessive sweating, aversion to wind, pale complexion, frequent cough, shortness of breath, improvement during the day, worsening at night. Diagnosis is at the supraorbital region, showing white color. (Note: Lung governs skin/hair; wind invasion causes porous interstices and sweating. Lung color is white; disease shows externally. Lung movement is cough; wind induces cough. Cough causes shortness of breath (panting). Qi dislikes closure and prefers expansion; daytime yang expands (improvement), nighttime yin closes (worsening). Supraorbital area is Lung's domain; whiteness indicates Lung disease. 'Peng' pronunciation. 'Chai' pronunciation, meaning recovery.)

Heart Wind presents with excessive sweating, aversion to wind, dry/burnt lips, irritability/fright, red complexion. Severe cases show slurred speech. Diagnosis is at the mouth, showing red color. (Note: Fluids transform into sweat in Heart; wind in Heart causes sweating. Fire scorches objects; burnt lips indicate Heart Fire blazing. Blazing fire causes irritability. Tongue is Heart's sprout; Heart disease causes tongue stiffness and speech difficulty. Red is Heart color; disease shows redness at mouth. Annotation attributing burnt lips to heat peeling skin is wrong.)

Liver Wind presents with excessive sweating, aversion to wind, sadness, slightly greenish complexion, dry throat, irritability, aversion to women. Diagnosis is below the eyes, showing green color. (Note: Liver governs wind; additional wind invasion causes internal/external connection and qi leakage, leading to sweating. Sadness is Lung emotion; Liver disease weakens Wood, controlled by Metal, causing sadness. Green is Wood's pathological color. Liver meridian passes through throat; wind-fire blazes causing dry throat. Anger is Liver emotion; urgent Wood qi causes hyperactivity, leading to aversion to women. Annotation attributing sadness to Heart deficiency is wrong. 'Yi' pronunciation, meaning throat obstruction.)

Spleen Wind presents with excessive sweating, aversion to wind, lethargy, desirelessness in limbs, pale-yellow complexion, loss of appetite. Diagnosis is on the nose, showing yellow color. (Note: Wind transforms to Wood, feared by Spleen. Wood attacks Earth, loosening flesh/interstices, causing sweating. Spleen disease weakens qi (lethargy). Spleen governs limbs (desirelessness). Weak Spleen causes pale-yellow hue. Loss of appetite indicates Spleen dysfunction in taste. Nose is central face, belongs to Earth; yellow nose indicates Spleen disease. Annotation citing Heart meridian lethargy is wrong.)

Kidney Wind presents with excessive sweating, aversion to wind, puffy face, back pain preventing upright standing, black complexion, urinary difficulty (Yin Qu Bu Li). Diagnosis is on the skin/muscle, showing black color. ('Ran' means swelling. 'Mo' means black. 'Yin Qu' refers to private/genital areas. Kidney stores essence, governing sexual function. Wind thinning Kidney causes dysfunction in private matters. Black is Kidney color. Note: Sweat is water, Kidney fluid. Wind causes Kidney water to leak as sweat. Kidney disease causes water flooding (facial puffiness). Wind in Kidney weakens waist (inability to stand). Black color indicates Kidney disease manifesting externally. Wind in Kidney flaccidizes sinews (sexual dysfunction). 'Mang' pronunciation. 'Tai' pronunciation, meaning soot.)

Stomach Wind presents with neck sweating, aversion to wind, dysphagia, chest obstruction, abdominal distension, bloating when underdressed, diarrhea from cold food, emaciated body with distended abdomen. (Note: Stomach is Earth; Wood attacks, leaking Stomach fluids. Stomach pulse is at Renying (neck); wind in Stomach causes neck sweating. Stomach governs digestion, connecting diaphragm to abdomen; disease causes obstruction and fullness. Stomach likes warmth, hates cold; cold causes bloating/diarrhea. Earth attacked by Wood causes muscle wasting and stagnant Middle Qi, resulting in emaciation and distended abdomen—this is the diagnostic sign.)

Head Wind presents with head/face sweating, aversion to wind. Symptoms worsen one day before windy weather, with headache preventing going out or staying indoors. On windy days, symptoms improve. (Head is meeting of Yang meridians; wind makes skin/interstices loose, causing sweating. Note: 'One day before' refers to early stage before full manifestation. Wind strikes subtly; sudden headache occurs. Only when sweating/puffiness appear is wind recognized, and pain subsides. Reason: Wind internalizing is severe, externalizing is mild—natural law.)

Leaking Wind presents with excessive sweating, inability to wear single clothes, sweating upon eating, severe whole-body sweating, panting, aversion to wind, wet clothes, dry mouth/thirst, inability to labor. (Note: Spleen/Lung deficiency. Lung deficiency causes porous interstices (sweating) and cold intolerance (no single clothes). Panting invites wind, causing dry mouth. Spleen deficiency weakens Middle Qi (sweating after eating, inability to labor). Spleen deficiency implies internal insecurity; Lung deficiency implies external looseness, hence 'Leaking Wind'.)

Draining Wind presents with excessive sweating soaking clothes, dry mouth, ... inability to labor, generalized body pain with chills. The Emperor said: Excellent! (Excessive sweat depletes fluids (dry mouth). Labor increases sweating (inability to work). Generalized pain due to sweat loss. Sweat loss destroys Yang (chills). Note: Xin Zheng Jiao says: 'Sun Simiao stated: "Wind after intercourse is Internal Wind, presenting with aversion to wind and profuse sweating soaking clothes." Suspecting this Draining Wind is actually Internal Wind. Earlier text lists Leaking, Internal, Head Wind, then Intestinal Wind (internal) and Draining Wind (external). Presence of Draining Wind but absence of Internal Wind suggests Sun Simiao's Internal Wind matches this Draining Wind description. Thus, suspect 'Xie' (Drain) is a typo for 'Nei' (Internal).")