阳气衰于下。则为寒厥。阴气衰于下则为热厥(阳足三阳脉。阴盛阳衰。则阴起于下。
故寒
厥必从五指至膝上寒。阴足三阴脉。阳盛阴虚。则阳乘阴位。故热厥必足下热)寒厥何失而
然也。前阴者宗筋之所聚。太阴阳明之所合也。春夏则阳气多而阴气少。秋冬则阴气盛。而
阳气衰此人者质壮。以秋冬夺于所用(多欲夺阴)下气上争不能复(阳搏阴激。身半以下之气
亦引而上争。不能复归其经)精气溢下(阴精下泄)邪气因从之而上也(阳虚则阴胜为邪)气因
于中(气即精气邪气。皆出内而生也○此句吴注在上文前阴者之上)阳气衰不能渗营其经络。
阳气日损阴气独在。故手足为之寒也(四肢为诸阳之本)热厥何如而然也。酒入于胃。则络脉
满而经脉虚脾主为胃行其津液者也阴气虚。则阳气入(湿热在脾。则阴虚阳亢)阳气入。则胃
不和。胃不和则精气竭。精气竭。则不营其四肢也(脾胃俱病。不生精气。营。充养也)此人
必数醉。若饱以入房(伤其脾肾)气聚于脾中不得散。酒气与谷气相搏。热盛于中。故热遍于
身。内热而溺赤也。夫酒气盛而 悍。肾气日衰。阳气独胜。故手足为之热也。
人病胃脘痈者。当候胃脉。沉细者气逆(阳明多气多血。脉当洪大。若见沉细。气逆于
常也)逆者人迎甚盛。甚盛则热(胃气逆而人迎盛。所谓人迎三盛。病在阳明是也)人迎者胃脉也(
谓结喉旁动脉。今作左手关前脉)逆而盛。则热聚于胃口而不行。故胃脘为痈也。
有病怒狂者。名曰阳厥。治之夺其食即已。夫食入于阴长气于阳。故夺其食即已。使之
服以生铁洛为饮。夫生铁洛者下气疾也(寒而镇重。故下气速。又怒为肝志。是木欲。实金当平
有病身热懈惰(湿热伤筋)汗出如浴(热蒸于肌肤)恶风少气(卫虚)病名曰酒风(即风论中
漏风也)以泽泻术各十分。麋 五分。合以三指撮(约其数为煎剂)为后饭(泽泻渗利。湿热
。白术燥湿止汗。麋 即薇 一名无心草。一名吴风草。苦平微寒。治风湿。)
阳气在下部衰微，就会发生寒厥。阴气在下部衰微，就会发生热厥。（足三阳脉充盈而足三阴脉相对偏盛、阳气相对不足时，阴寒之气从下部发起，所以寒厥的症状一定是从脚趾冷到膝盖以上；足三阴脉充盈而足三阳脉相对偏盛、阴气相对不足时，阳气乘袭阴经之位，所以热厥的症状一定是脚心发热。）
寒厥为什么会这样呢？前阴部位是宗筋（众多筋脉汇聚之处）所聚的地方，也是太阴脾经与阳明胃经气血交汇之处。春夏季节阳气多而阴气少，秋冬季节阴气盛而阳气衰。这种人身体壮实，却在秋冬季节过度使用肾精（纵欲耗损阴精），导致下部的精气向上争逆而不能回复原位（阳气搏激阴液，半身以下的气也被牵引向上争逆，不能回归其经脉），精气向下泄漏（阴精下泄），邪气便随之而上行（阳气虚弱则阴寒胜而为邪）。这些气郁结在中焦（气即精气与邪气，皆由体内产生）。阳气衰微，不能渗透濡养经络，阳气日渐损耗，阴气独存，所以手足发冷（四肢是诸阳之本）。
热厥又是怎样发生的呢？酒进入胃中，络脉充满而经脉空虚。脾主为胃传输津液。如果阴气虚弱，阳气就会内入（湿热蕴结于脾，导致阴虚阳亢）。阳气内入，则胃气不和；胃气不和，则精气枯竭；精气枯竭，就不能充养四肢（脾胃同病，无法化生精气，营指充养）。这种人必定经常醉酒，或者在饱食后行房事（损伤脾肾）。气聚积在脾中不得疏散，酒气与谷气相互搏结，热气盛于中焦，所以热气遍满全身，出现内热和小便赤黄。酒的性质刚烈迅猛，会使肾气日渐衰微，阳气独盛，所以手足发热。
人患胃脘痈（胃部脓肿）时，应当诊察胃脉。如果脉象沉细，说明气机逆乱（阳明经是多气多血的经脉，脉象应当洪大，若见到沉细脉，说明气机违背常道而逆乱）。气机逆乱的人，人迎脉（颈部动脉，此处指左手关前脉）非常盛大，盛大则代表有热（胃气上逆导致人迎脉盛，这就是所谓的人迎脉大三倍于寸口，病在阳明经）。人迎脉就是胃脉的反映。气机逆乱且脉盛，则热邪聚集在胃口而不能消散，所以形成胃脘痈。
有人患病表现为愤怒发狂，名叫阳厥。治疗的方法是减少他的饮食即可痊愈。因为食物进入体内转化为阴精，进而助长阳气，所以通过限制饮食（断绝阳气生化之源）就能治愈。同时让患者服用生铁洛（生铁落）煎成的汤剂。生铁洛的性质沉降且重镇，能迅速降气（因其性寒而质重，故降气速度快。另外，愤怒属于肝的情志，肝木欲实，当用金来平抑）。
有人患病身体发热、肢体懈怠无力（湿热损伤筋脉），出汗像洗澡一样（热邪蒸腾于肌肤），怕风且气短（卫气虚弱）。这种病名叫酒风（即《素问·风论》中的漏风）。用泽泻和白术各十分，麋衔（即薇衔，一名无心草，一名吴风草，味苦、性平微寒，主治风湿）五分，混合后用三指撮取（约为煎剂的量），在饭后服用（泽泻渗利湿热，白术燥湿止汗，麋衔祛风除湿）。
Yang qi deficiency in the lower part leads to Cold Jue (Cold Reversal Syndrome). Yin qi deficiency in the lower part leads to Heat Jue (Heat Reversal Syndrome). (When the Foot Three Yang meridians are full and Yin is abundant while Yang is deficient, Yin cold rises from below; thus, Cold Jue involves coldness extending from the toes up to the knees. When the Foot Three Yin meridians are full and Yang is abundant while Yin is deficient, Yang invades the position of Yin; thus, Heat Jue involves heat starting from the soles of the feet.)
Why does Cold Jue occur? The anterior yin region is where the Zongjin (Tendon Sinews) converge, and it is the junction of the Taiyin Spleen and Yangming Stomach meridians. In spring and summer, Yang qi is abundant and Yin qi is scarce; in autumn and winter, Yin qi is abundant and Yang qi is deficient. This person has a robust constitution but squanders their essence during autumn and winter (excessive sexual activity depletes Yin). The Qi from the lower body struggles upward and cannot return (Yang pulses against Yin, drawing Qi from below the waist upward, preventing it from returning to its meridians), essence leaks downward (Yuan essence drains downward), and pathogenic Qi follows it upward (Yang deficiency allows Yin cold to prevail as pathogen). These Qi accumulates in the middle (Qi refers to both essential Qi and pathogenic Qi, generated internally). Yang Qi is too weak to penetrate and nourish the collaterals and meridians; Yang Qi diminishes day by day, leaving Yin Qi alone, causing coldness in the hands and feet (The four limbs are the root of all Yang Qi).
How does Heat Jue occur? When wine enters the stomach, the Luo-connecting vessels become full while the Jing-main meridians become empty. The Spleen governs transporting fluids for the Stomach. If Yin Qi is deficient, Yang Qi enters (Damp-heat in the Spleen causes Yin deficiency and Yang hyperactivity). Once Yang Qi enters, the Stomach becomes disharmonious; when the Stomach is disharmonious, Essence and Qi are exhausted; when Essence and Qi are exhausted, they cannot nourish the four limbs (Spleen and Stomach disease together fail to generate Essence; Ying refers to nourishment). Such a person likely drinks heavily or engages in sexual intercourse after being full (damaging Spleen and Kidney). Qi gathers in the Spleen and cannot disperse; the aroma of wine and grain Qi contend with each other, generating intense heat in the center. Thus, heat pervades the body, causing internal heat and dark urine. Wine Qi is potent and fierce, causing Kidney Qi to decline daily, leaving Yang Qi dominant, resulting in heat in the hands and feet.
When a person suffers from Weiwanyong (Stomach Epigastrium Carbuncle), one must examine the Stomach pulse. A deep and fine pulse indicates rebellious Qi (the Yangming meridian is rich in Qi and Blood, so the pulse should be洪大 [surging and large]; if deep and fine, Qi is rebellious against normality). In cases of rebellion, the Renying (Renying Pulse, located at the carotid artery near the larynx, here referring to the pulse before the Guan position on the left hand) is very vigorous; vigor indicates heat (Rebellious Stomach Qi causes Renying pulse to surge, known as "Renying three times larger than Cunkou," indicating disease in the Yangming meridian). The Renying pulse reflects the Stomach meridian. Rebellion and vigor cause heat to accumulate at the gastric opening without dispersing, leading to the formation of a carbuncle in the epigastrium.
Some patients exhibit anger and mania, named Yang Jue (Yang Reversal). Treatment involves restricting their food intake until recovery. Food transforms into Yin essence, which generates Yang Qi; thus, restricting food cuts off the source of Yang Qi generation. Additionally, administer Shengtieluo Yin (Decoction of Raw Iron Filings). Shengtieluo (Raw Iron Filings) has a heavy, descending nature that rapidly lowers Qi (due to its cold and heavy properties, it descends Qi quickly. Furthermore, anger is associated with the Liver; when Liver Wood is excessive, Metal should subdue it).
Some patients present with fever, flaccidity and lethargy (Damp-heat damaging sinews), profuse sweating like bathing (Heat steaming the skin and muscles), aversion to wind, and shortness of breath (Wei Qi deficiency). This condition is called Jiufeng (Wine Wind, also known as Loufeng/Leaking Wind in the *Feng Lun* chapter). Use Zexie (Alismatis Rhizoma) and Baizhu (Atractylodis Macrocephalae Rhizoma) in equal parts (10 units each), and Mixian (Muxian/Vixian herb, also known as Wuxiancao, bitter, neutral, slightly cold, treating wind-dampness) in 5 parts. Mix them and take approximately three finger-widths (a small dose for decoction) after meals (Zexie promotes urination to leach out damp-heat; Baizhu dries dampness and stops sweating; Mixian dispels wind and removes dampness).