心病为主面赤，口干，善笑，口苦，焦臭，多言，足汗，其病心烦心痛，掌中热，口干也。
肝病面青，善怒，
脐左痛，其病四肢，满闷，淋溲，便难，转筋也。脾病面黄，善噫，当脐痛，腹胀满，食不消，
体重节痛，怠惰嗜卧，四肢不收。肺病为主面白，善嚏，悲愁不乐，欲哭，脐右痛，其病喘咳，
洒淅寒热也。肾病为主面黑，恐，脐下痛，四肢厥逆，小腹急痛，泄注下重，足寒，而多逆也。
厥阴所至土当灾，令民交病水不来，心痛胃脘两胁满，咽喉壅闭甚难开。太阴湿土雨时行，
民病头痛骨痹生，脱项拔腰并折髀，皆由肾脏未通享。少阴君火热临身，民病心烦干呕频，两胁
头痛时咳喘，恶寒瞀闷悸惊人。少阳相火热司天，所胜之年心病先，胸满鼻衄两胁胀，喘咳腹胀
火当年。阳明燥胜木为殃，头痛昏昏左胁伤，男子伤筋浮肿胀，妇人腹痛又心狂。太阳寒水心受
灾，民病头痛寒热来，腹痛肘挛筋急痛，面黄嗌向口干烦。
\r旧经七十二候之图\pt166a22.bmp\r
演纪开元十二年甲子岁正月一日己酉朔，积至今明昌四年，积得四百七十年。减一 ，乘岁
周，分乘之，
得一十七万一千二百九十九日二十四分八十四秒，去天纪，命己酉， 外得戊申日交司日辰及分，
（六十去之。）外有□。置大寒五十九日二十四分八十四秒，加候策五日零七分二十八秒，满六
去之。假令癸丑年大寒交司，五十九日二十四分八十四秒，加候策五日零七分二十八秒，得六十
四日三十二分一十二秒，命己酉，得癸丑日。鸷鸟厉疾，大寒气下，乃鸡始乳也。此鸷鸟厉疾者，
大寒后五日。
经曰∶何谓气？岐伯曰∶上帝所秘，先师传之。日五日谓之候，三候谓之气，六气谓之时，
四时谓之岁。岁者谓之期，四期谓一小周，十五小周为一大周，乃六十年也。凡此之数，九六为
之纪也，故经曰六六之节、九九制会者，所以正天之度，气之数。天度者，所以制日月之行也，
气数者，所以生化之用也。天为阳，地为阴，日为阳，月为阴。行者，分纪也。周有道理，日行
一度，月行十三度而有奇焉，故大小月三百六十五日，曲成一岁，积气余而盈润矣。然昼夜日行
天之一度，月行十三度零十九分之后也。（后载法在用针补泻内，出八正神明论中。）然五星者，
皆属地，体循天而右行也。南面东转，北面西行，故曰天顺地而左旋，地承天而右行矣，是日行
迟而月行疾也。
凡太阳一年三百六十五日，一日行一度，一年行一周天。月一日行十三度有奇，二十九日行
一周天，日方行二十九度。此之比月，则月已先行一周天三百六十五度，之外又行天之二十二度，
则反少七度，而不及日也。又加半日，则同宫而为一月。《阴阳说》谓∶月之行，月有前后，迟
速分等，周天常准，则有大小尽之异也。本三百六十五日四分度之一。荆朴曰∶周天三百六十五
度四分度之一者，故日行天一度，月行十三度有奇。月二十七日行一周天，更二
日半行，乃日与月相会，成一月。计日二十九度半，在人二十九日半，合个二十九度半，共五十
九日，故月有大尽有小尽。一岁日共行三百五十四度，在人计三百五十四日。周天三百六十五度
四分度之一，成人间一年，今只行三百五十四度，在人计三百五十四日，余却一十一度四分度之
一，计一十一日三时辰，故三年一闰，五年而再闰，十九年七闰，方成一章。至八十章，然后盈
虚之数尽而复始。
心脏病变主要表现为面色红赤，口干舌燥，喜欢发笑，口中有苦味，口中散发焦臭味，言语过多，足部出汗。其病症包括心中烦乱、心痛，手掌心发热，以及口干。
肝脏病变表现为面色青暗，容易愤怒。脐部左侧疼痛，其病症涉及四肢，出现胀满憋闷、小便淋漓不畅、大便困难、筋脉抽搐拘挛等症状。
脾脏病变表现为面色萎黄，经常嗳气，肚脐周围疼痛，腹部胀满，食物不消化，身体沉重且关节疼痛，精神倦怠嗜睡，四肢无力无法收持。
肺脏病变主要表现为面色苍白，容易打喷嚏，悲伤忧愁不快乐，想要哭泣，脐部右侧疼痛，其病症为气喘咳嗽，以及忽冷忽热的恶寒症状。
肾脏病变主要表现为面色黑，易恐惧，脐下疼痛，四肢厥冷逆乱，小腹部急痛，腹泻伴有肛门重坠感，足部寒冷，且多出现气逆上冲的症状。
厥阴风木之气到来时，土气遭受灾害，导致民众同时患病，水液代谢失常（肾水不来），出现心痛、胃脘部及两胁胀满，咽喉壅塞闭塞甚至难以张开。
太阴湿土之气按时令流行时，民众患头痛、骨痹病，出现项部僵硬脱节、腰部折断样疼痛和大腿骨折样疼痛，这都是因为肾脏不通畅所致。
少阴君火之气降临人身时，民众患心烦、频繁干呕，两胁胀痛、头痛，时而咳嗽气喘，伴有恶寒、神志昏蒙闷乱、心悸惊恐等症状。
少阳相火之气主司天时，被其所胜的年份首先影响心脏，出现胸部胀满、鼻出血、两胁胀满，气喘咳嗽、腹部胀满等火邪当年的病症。
阳明燥金之气过胜则木气遭殃，出现头部昏沉疼痛、左侧胁部受伤，男子伤及筋脉出现浮肿肿胀，妇人出现腹痛和心神狂乱。
太阳寒水之气为心脏带来灾害，民众患头痛、寒热往来，腹痛、肘部拘挛、筋脉急痛，面色发黄、咽喉干燥、口干烦躁。
\r旧经七十二候之图\pt166a22.bmp\r
推算开元十二年甲子岁正月一日己酉朔日，累计到现在的大定明昌四年，共计四百七十年。用这个年数减一，乘以岁周（365.25日），再除以相应的分数，得到十七万一千二百九十九日二十四分八十四秒。去除天纪基数，以己酉为起点，向外推算得出戊申日为交司日辰及其分数（减去六十的倍数）。外部还有空缺。放置大寒节气五十九日二十四分八十四秒，加上候策五日零七分二十八秒，满六十进位去掉。假如癸丑年大寒交司，五十九日二十四分八十四秒，加上候策五日零七分二十八秒，得到六十四日三十二分一十二秒，以己酉为起点推算，得到癸丑日。此时对应“鸷鸟厉疾”这一候，大寒气下沉，鸡开始孵卵。所谓“鸷鸟厉疾”，是指大寒后的第五天。
经文说：什么是气？岐伯说：这是上帝所秘传的，由先师传承下来。五天称为一候，三候称为一气，六气称为一时，四时称为一岁。一岁称为一期，四个一期称为一小周，十五个小周称为一大周，即六十年。所有这些数字，以九和六作为纪法，所以经文说“六六之节、九九制会”，是用来端正天的度数，规范气的数量。天度，是用来制约日月运行的；气数，是用来生化万物作用的。天为阳，地为阴；日为阳，月为阴。运行，是分别记录纪次的。周天有道理，太阳每天运行一度，月亮每天运行十三度有余，所以大小月合计三百六十五日，曲折构成一岁，积累气的余数而充盈润泽。然而昼夜之间，太阳在天中运行一度，月亮运行十三度零十九分之后。（这种方法记载在用针补泻内，出自《八正神明论》。）然而五星，都属于地，形体跟随天体向右运行。面向南时向东转，面向北时向西行，所以说天顺应地而向左旋转，地承受天而向右运行，这就是太阳运行慢而月亮运行快。
凡太阳一年三百六十五日，一天运行一度，一年运行一周天。月亮一天运行十三度有余，二十九天运行一周天，此时太阳才运行二十九度。这与月亮相比，月亮已经先行了一周天三百六十五度，之外又运行了天的二十二度，反而少了七度，不及太阳。再加上半天，就同宫合为一月。《阴阳说》认为：月亮的运行，有前有后，迟速等级不同，周天常有标准，因此有大尽小尽的区别。本应是三百六十五日四分之一。荆朴说：周天三百六十五度四分之一，所以太阳每天运行天一度，月亮每天运行十三度有余。月亮二十七天运行一周天，再加两天半运行，才是太阳与月亮相会，形成一月。计算太阳二十九度半，在人间的计时为二十九日半，合计二十九度半，共五十日，所以月亮有大尽和小尽。一年太阳共运行三百五十四度，在人间计算为三百五十四日。周天三百六十五度四分之一，构成人间的一年，现在只运行三百五十四度，在人间计算为三百五十四日，剩余却有一十一度四分之一，计为一十一日三时辰，所以三年一闰，五年再闰，十九年七闰，才能完成一章。到了八十章，然后盈虚之数穷尽而复始。
The Heart disease primarily presents with a red complexion, dry mouth, tendency to laugh excessively, bitter taste in the mouth, foul odor resembling burnt matter, excessive speech, and sweating of the feet. Its pathological manifestations include mental restlessness (Xin Fan), heart pain, heat in the palms, and dryness of the mouth.
The Liver disease presents with a bluish-green complexion and irritability. There is pain on the left side of the umbilicus. Pathological manifestations involve the four limbs, distension and fullness, scanty or difficult urination (Lin Sou), difficult defecation, and tendon spasms (Zhuan Jin).
The Spleen disease presents with a sallow complexion, frequent belching (Yi), pain around the umbilicus, abdominal distension and fullness, indigestion, heavy body sensation with joint pain, lethargy and desire to lie down, and weakness of the four limbs unable to hold objects.
The Lung disease primarily presents with a pale complexion, frequent sneezing, sadness and melancholy, desire to cry, pain on the right side of the umbilicus. Pathological manifestations include wheezing and coughing, and aversion to cold with shivering (Sa Xi) alternating with fever.
The Kidney disease primarily presents with a dark complexion, fearfulness, pain below the umbilicus, cold extremities (Jue Ni), acute pain in the lower abdomen, diarrhea with a sensation of heaviness in the rectum, cold feet, and frequent rebellious Qi (Qi Ni).
When Jueyin Wind Wood Qi arrives, Earth suffers disaster. The people suffer from multiple diseases; Water fails to arrive. Symptoms include heart pain, fullness in the stomach region and hypochondrium, and obstruction and closure of the throat, making it difficult to open.
When Taiyin Damp Earth Qi prevails according to the season, the people suffer from headache and bone Bi syndrome. Symptoms include stiffness of the neck, low back pain resembling fracture, and thigh pain resembling fracture. These are all due to the lack of smooth flow in the Kidneys.
When Shaoyin Ministerial Fire Qi descends upon the body, the people suffer from mental restlessness, frequent dry retching, hypochondriac pain, headache, occasional cough and wheezing, aversion to cold, confusion and oppression, palpitations, and fright.
When Shaoyang Ministerial Fire Qi governs Heaven (Si Tian), the year dominated by its overcoming element sees Heart disease first. Symptoms include chest fullness, epistaxis, hypochondriac distension, wheezing, coughing, and abdominal distension, characteristic of Fire pathology in that year.
When Yangming Dry Metal Qi overcomes, Wood suffers disaster. Symptoms include dull headache, injury to the left hypochondrium. In men, tendons are injured leading to floating edema; in women, abdominal pain and mental mania occur.
Taiyin Cold Water brings disaster to the Heart. The people suffer from headache, alternating chills and fever, abdominal pain, elbow contracture, acute tendon pain, yellowish complexion, dry throat, dry mouth, and restlessness.
\rOld Chart of the 72 Pentads\pt166a22.bmp\r
Calculating from the first day of the first month of the Jiazi year in the 12th year of Kaiyuan (Jiyou New Moon), accumulating to the 4th year of Mingchang in the current era, a total of 470 years have passed. Subtract one, multiply by the Solar Year (365.25 days), and divide by the respective fraction, obtaining 171,299 days, 24 fen, and 84 miao. Remove the Heavenly Cycle base, designate Jiyou as the starting point, and calculate outward to find the Wushen day as the Jiaosi (transition) day and its fractions (subtract multiples of sixty). There is an external blank. Place the Dashu (Major Cold) solar term at 59 days, 24 fen, and 84 miao. Add the Houce (pentad measure) of 5 days, 7 fen, and 28 miao. Discard amounts reaching sixty. For example, if Dashu in the Guichou year transitions: 59 days, 24 fen, 84 miao plus 5 days, 7 fen, 28 miao equals 64 days, 32 fen, 12 miao. Designating Jiyou as the start yields the Guichou day. This corresponds to the pentad "Vicious Birds Act Fiercely" (Zhi Nuo Li Ji). The Major Cold Qi descends, and chickens begin to incubate eggs. "Vicious Birds Act Fiercely" refers to the fifth day after Major Cold.
The Classic states: What is Qi? Qibo replied: It is kept secret by the Supreme Lord and transmitted by former masters. Five days constitute one pentad (Hou); three pentads constitute one Qi (Solar Term segment); six Qis constitute one Season (Shi); four Seasons constitute one Year (Sui). One Year is called one Period (Qi); four Periods constitute one Small Cycle; fifteen Small Cycles constitute one Great Cycle, which is sixty years. All these numbers are governed by Nine and Six. Thus, the Classic says "Six-Six Sections and Nine-Nine Convergence" are used to correct the degrees of Heaven and the count of Qi. The Degrees of Heaven regulate the movement of the Sun and Moon; the Count of Qi governs the functions of generation and transformation. Heaven is Yang, Earth is Yin; Sun is Yang, Moon is Yin. Movement refers to the division and recording of cycles. The cycle has principles: the Sun moves one degree per day; the Moon moves thirteen degrees and a fraction per day. Thus, large and small months sum to 365 days, curving to form one year, accumulating the surplus of Qi to fill and moisten. However, within day and night, the Sun moves one degree in Heaven, and the Moon moves thirteen degrees and nineteen fen afterwards. (This method is recorded in the section on acupuncture tonification and sedation, originating from the *Ba Zheng Shen Ming Lun*.) The Five Planets belong to Earth but follow the celestial sphere moving to the right. Facing South, they turn East; facing North, they move West. Thus, it is said that Heaven follows Earth rotating to the Left, and Earth receives Heaven moving to the Right. This means the Sun moves slowly and the Moon moves quickly.
In one Solar Year of 365 days, the Sun moves one degree per day, completing one circuit of Heaven in a year. The Moon moves thirteen degrees and a fraction per day, completing one circuit of Heaven in 29 days. At this point, the Sun has only moved 29 degrees. Compared to the Moon, the Moon has already completed one circuit of 365 degrees, plus an additional 22 degrees of Heaven, falling short by 7 degrees compared to the Sun. Adding half a day brings them into the same palace, forming one lunar month. The *Yin Yang Shuo* states: The Moon's movement has front and back, slow and fast distinctions. With a constant standard for the celestial circle, there are differences between full (Da Jin) and incomplete (Xiao Jin) months. The base is 365 and one-quarter days. Jing Pu stated: Since the celestial circle is 365 and one-quarter degrees, the Sun moves one degree per day, and the Moon moves thirteen degrees and a fraction. The Moon completes one circuit in 27 days. After another two and a half days, the Sun and Moon meet, forming one month. Calculating 29.5 degrees of the Sun, corresponding to 29.5 days in human time, totaling 29.5 degrees, together with 59 days, explains why the Moon has full and incomplete months. In one year, the Sun travels 354 degrees, calculated as 354 days in human time. The celestial circle of 365 and one-quarter degrees constitutes one human year. Now it only travels 354 degrees, calculated as 354 days. The remainder is 11 and one-quarter degrees, counting as 11 days and three double-hours (Chenxi). Therefore, there is a leap year every three years, a second leap every five years, and seven leaps in nineteen years to complete one Chapter (Zhang). Upon reaching eighty chapters, the numbers of waxing and waning exhaust themselves and restart.