仲景云∶脉来缓（缓当作迟）时一止复来者名曰结，又脉来动而中止，更来小数，中有还者
反动名曰结，阴也。脉来动而中止不能自还，此动而中止复来，代也，得此脉者必难治。自还者，
此动而中止复来数于前动也。不
能自还者，动而中止复来如前动同而不数也。故有结脉者有促脉者有代脉者。结者阴也，阴盛则
结。脉来缓，时一止复来曰结，主胸满烦躁。促者阳也，阳盛则促。脉来数，时一止复来曰促，
主积聚气痞，忧思所成。大抵结促之脉虽时一止，为病脉，非死也，惟代者真死矣。往来缓动，
中止不能自还，周而复动名曰代也。代者死也。仲景《伤寒论》云∶脉促代，心悸动，炙甘草汤主之。
高阳生，五代时人，着《脉诀歌括》，托为王氏叔和，而今本杂以洁古《伤寒脉入式歌》，
又被熊宗立妄注，大为俗学之惑。叔和晋人也，自有《脉经》，尚复抵牾大段古书，难尽信也。
脉家书甚多，当以《内经》为主。滑氏《诊家枢要》以浮沉迟数滑涩六者为提纲，余补以有力无
力二者。丹溪以血气痰火为病之提纲，则脉滑在血分而有余为痰，凡有形者从之；涩在气分而有
余为火，凡无形者从之。浮在表，沉在里，迟为寒，数为热，有力为实，无力为虚。执此提纲，
脉可得而明矣。（《医通》）
Zhang Zhongjing stated: When the pulse is slow (slow should be interpreted as delayed) and stops occasionally before resuming, it is called Jie Pulse (Knotted Pulse). Another manifestation is when the pulse movement stops abruptly, resumes with a slightly faster rate, and shows a returning rebound; this is also called Jie Pulse, indicating a Yin syndrome. If the pulse movement stops abruptly and cannot recover on its own, although it resumes later, this is Dai Pulse (Intermittent Pulse); patients with this pulse are difficult to treat. "Recovering on its own" means that after the stop, the subsequent pulsations occur more frequently than before. "Cannot recover on its own" means that after the stop, the resumption of pulsation is identical to the previous rhythm without increased frequency. Therefore, there are Jie Pulses, Cu Pulses, and Dai Pulses. Jie Pulse belongs to Yin; an excess of Yin leads to Jie Pulse. A slow pulse that stops occasionally and then resumes is called Jie Pulse, primarily indicating chest fullness and irritability. Cu Pulse belongs to Yang; an excess of Yang leads to Cu Pulse. A rapid pulse that stops occasionally and then resumes is called Cu Pulse (Rapid Intermittent Pulse), primarily indicating accumulation and Qi stagnation (Pi Syndrome), often caused by worry and overthinking. Generally speaking, although Jie and Cu pulses stop occasionally and are pathological, they are not fatal; only Dai Pulse indicates true death. When the pulse moves slowly, stops midway, cannot recover on its own, and repeats cyclically, it is called Dai Pulse. Dai Pulse indicates death. Zhang Zhongjing in *Shanghan Lun* (Treatise on Cold Damage Disorders) stated: When the pulse presents as Cu or Dai accompanied by palpitations, Zhi Gancao Tang (Honey-P fried Licorice Decoction) should be used.
Gao Yangsheng was a person from the Five Dynasties period who wrote *Maijue Ge Kua* (Songbook of Pulse Secrets), falsely attributing it to Wang Shuhe. The current version mixes Jiegu's (*Zhang Yuansu*) *Shanghan Mai Rushi Ge*, and has been wrongly annotated by Xiong Zongli, greatly confusing vulgar scholars. Wang Shuhe was a Jin Dynasty scholar who authored *Mai Jing* (Pulse Classic); even his work contradicts many ancient texts, so it cannot be fully trusted. There are many pulse books, but one should take *Neijing* (Inner Canon of the Yellow Emperor) as the primary authority. Hua Shi (Hua Sui) in *Zhenjia Shuyao* (Key Essentials of Pulse Diagnosis) took Floating, Deep, Slow, Rapid, Slippery, and Choppy as the outline, and I supplemented it with Forceful and Weak categories. Zhu Danxi took Blood, Qi, Phlegm, and Fire as the outline for diseases. Thus, a Slippery pulse indicates excess in the Blood aspect manifesting as Phlegm; for tangible pathogens, treat according to their nature. A Choppy pulse indicates excess in the Qi aspect manifesting as Fire; for intangible pathogens, treat according to their nature. Floating indicates Exterior syndromes, Deep indicates Interior syndromes, Slow indicates Cold, Rapid indicates Heat, Forceful indicates Excess syndromes, and Weak indicates Deficiency syndromes. By grasping this outline, the pulse can be clearly understood. (From *Yitong*)