象天之阴阳的大脑，是以大脑三十六条大脑之小神经腺三十六天罡为接收天上日、月、星电波，汇聚合而成大脑之十条中枢神经，十条中枢神经道家名曰十天干，十天干大脑中枢神经的会聚点名为任脉。它在人身前面有三八四条神经以应农历闰年三八四天，主司人体全身动、静脉的小血管，有记忆、发音、辨色、说话、生智能等作用。
象地之阴阳的小脑，是以小脑七十二条之小神经七十二地煞为接收地下水、火、风等电波，经脚底涌泉穴，达到会阴穴之七十二圆觉，经脊髓至小脑聚地成七十二地煞，七十二地煞汇聚合而成小脑十二条周围神经，十二条周围神经道家名曰十二地支、十二地支小脑周围神经的聚会点名为督脉。在人身体后面有三十一对神经以应一月之三十一日，更分三百六十五条小神经，以应阳历三百六十五日，它有使人举手投足，活动自如。等作用。
故天干、地支乃为日、月、星之电波，与地球自身电波水、火、风对人身体产生之作用而名。任、督脉在人身体前后交互环绕而行，如同原子之有电子环绕，地球之有月亮环绕旋转。大脑、小脑之神经互相配合循环，则全身血脉及神经都不断的活动。故练气功、禅坐的人将任、督脉练畅通，即可使天、地电波加强输入，调息养生而不易生病以现代的仪器扫描，可侦察得知，健康人的任脉十天干的会合点、督脉十二地支的会合点，清明如露珠之润滑，尤以练气修身上乘者更甚，而生病的人任脉、督脉之点如水之结冰，其病危者凝结如冰更甚。
人自出生后，即受后天的呼吸、情绪、饮食与气候、环境……等因素变化的影响，身体作生理的各种调节适应，以天干、地支之电流，对全身构成十二经络、十五别络、奇经八脉气归五脏六腑的经络循环易经商名归藏因之而名，而十二经络六阴六阳随着出生后的每个时辰、日、月、节气、四季、年、十年、六十年的周期规律，作其经脉电流气或强弱、或盛衰、为一阶段性高低电位调整的变化，连绵如山的电流循环易经夏名连山因之而名，是为人出生后五脏六腑十二经络、阴阳循环运行，即是易经重卦现象如图三。
人体六阴六阳十二经络电位盛衰、强弱、高低电位从出生后之每个时辰、每日、每月、廿四节气、四季及每年、每十年、每六十年随天干甲、乙、丙、盯戊、己、庚、辛、壬、癸、地支子、丑、寅、卯、辰、巳、午、未、申、酉、戌、亥阴阳经络循环重卦现象，此为中医生理学之主题。
例如从出生至十岁为手足少阳三焦、胆经气所行，十一岁至廿岁为手足阳明大肠、胃之经气所行，廿一岁至卅岁为手足太阳小肠、膀胱之经气所行，三阳经气至卅岁而尽，身体的生长发育至此而尽。及至卅一岁至四十岁为手足少阴心、肾经气所行，四十一岁至五十岁为手足太阴肺、脾经气所行，五十一岁至六十岁为手足厥阴心包、肝经气所行，三阴经气至六十岁而止。从出生至六十岁，三阳经气所行时是身体脏腑经络生长发育的阶段。三阴经气所行时是脏腑经络生长发育至极点而呈衰萎虚弱的经路历程。如此从出生至六十岁，从生长发育至衰老，为身体生化过程循环一甲子完毕，与天地星辰运行六十年起一变化，经络运行再从头始循环相同，经络的循环变化称为易经，经络周而复始的循环变化称为周易。常言：老人之个性，与小孩的个性相似，实因六十岁后为经络重新循环之故。
中国医学之生理学，从怀孕至出生时的先天生理变化为八卦之体－－即先天八卦。与自出生之时刻起至六十岁之生理变化，随年龄的变化，受天上日、月、星辰、地球本身水、火、风之电波为天干、地支及人为环境、饮食、情绪、心理：：等因素，是以十二经络，阴阳相荡而为易经八八六十四卦为动变之基础理论，是为八卦之用－即后天八卦。
例如地球有约百分之七十以上的水份，人身的水份亦约有百分之七十的比例，地球的海水受月亮朔望的影响而有潮汐的变化，人的身体水份亦当受月亮朔望的变化影响，地球的磁场，是因地球含铁的作用而发生，人的血液含有铁质，故人身体亦受地球磁场的作用影响，是以人体时时、处处都在受天地气之影响而有所变化。
由上而知，人为一小天地，内经涵蕴天文、历法、气象与医学的关系。故内经所言，受病之源，养生之道，今日科学虽发达，人体构造，疾病的医疗，仍离不开五行生克，十二经络阴阳消长的易变。故欲解决医疗困惑之根本大道，唯有使大家对中国医学重新认识一途，要知人生非三、五天、三年、五年，而是一辈子几十年的生理变化。中医治病当知六十年，今日某经络，某器官受手术伤害，在一段时日，或十年、廿年后该经络气血旺衰，对人体所生之危害，实难以言喻。
今日西医动辄手术，而不明白中国医学，人体十二经络、五脏六腑之气血，随年龄、岁月之旺衰，而生阴阳消长五行生克之理，致手术、用药不当而造成的六经传变即所谓疾病的合并症，药物的副作用，实为贻误病患的错误学说针灸一支小小的毫针，对人体产生极大的变化，手术即造成人体的终身危害，更何况器官移植呢？
例如今日妇女的剖腹生产、输卵管的结扎、子宫瘤癌、打胎、甲状腺等任何手术，病患因不明白动手术对经络循环的伤害，直到四十岁时，经络气行至手少阴心，足少阴肾时，始致成身体日后健康的危害，心脏无力、腰酸背痛等各种症状，尤其手术时，麻醉药剂对腰椎命门穴的麻醉特效，造成妇女脑力的急剧退化，乃中医生理以肾为生命之源，腰为肾之腑，肾主骨，骨主髓，脑为髓海，伤害腰即伤害肾，伤害肾即伤害脑为对全身生命之源的伤害，实令妇女健康陷入无语问苍天的悲刽妇女骨质疏松症，老人痴呆症即因肾脏衰弱所造成。
内经阐述阴阳之秘，受病之源，上古天真论篇第一曰：上古之人，其知道者，法于阴阳，和于术数，食饮有节，起居有常，不妄作劳，故能形与神俱，而尽终其天年，度百岁乃去，今时之人不然也，以酒为浆，以妄为常，醉以入房，以欲竭其精，以耗散其真，不知持满，不时御神，务快其心，逆于生乐，起居无节，故半百而衰也。上古圣人之教下也，虚邪贼风，避之有时，恬淡虚无，真气从之，精神内守，病安从来，是以志闲而少欲，心安而不惧，形劳而不倦，气从以顺，各从其欲皆得所愿，故美其食，任其服，乐其俗，高下不相慕，其民故曰朴。是以嗜欲不能劳其目，淫邪不能惑其心；愚智贤不肖，不惧于物，故合于道，所以能年皆度百岁，而动作不衰者以其德全不衰也。
由上内经可知，疾病的避免，健康的获得，寿命的延长，重在养生，预防重于治疗此预防不是预防针，更不在价值几千几百万的科学仪器与医生医术的高明与否，故中医学理的发扬实刻不容缓。
中国医学是以人类实际生活经验与整个宇宙的变化为实验室，即疾病由日常生活中罹患，而疾病的痊愈，亦可由日常生活中寻求自然的解决，是由先贤智能的推理与经验累积，对大自然，环境的各种冲击与适应，不论在任何变因之下，中医皆以阴阳五行生克不变应万变，也确能为人类健康医疗，实际应用之实用医学。故有为医不明十二经络，开口动手便错。以及熟读王叔和，不如临症多之明训，经验较任何空洞理论，与书本上的记载可靠得多。
中医学理与中药原本一体，但今日常见中草药的毒性研究报告，与劝民众服用中草药应加斟酌的文章，而却不见能令大众明白什么是中医学理、中药学理的研究报告。
中医学理的黄帝内经，与药物学的神农本草到本草纲目，病与药的阴阳五行生克，自神农尝百草，日中七十毒，诸药的性味，有毒、无毒，及其祛毒，炮制方法，对人之适应，成方的配伍禁忌，君臣佐使，入何经络，对疾病的疗效，皆有详载条述，乃诸先贤的累积经验，五行生克与药物的君臣佐使，甚至出神入化的使用以达到医疗的目的，免除药物对人体的危害副作用都有很翔实的记载。
中国医学从生理解剖、移植及药物治疗的经验发现，疾病因药物、饮食、气候、情绪等在经络脏腑的传变并发症或副作用，阴阳五行生克医疗学理的建立，除外伤国术馆的手术保留，其余解剖、移植、手术的被废除，实有一段长远的历程，常听阴阳五行相生相克，到底什么是阴阳五行相生相克呢？
(一）什么是五行相生相克呢？
宇宙间上下左右与中心五点均衡之基本动能，为能的升、降、扩散、收缩与稳定，其作用综合分别为火、水、木、金、土代表之，能的生长为阳，消耗为阴，能的助力为生，阻力为克。人为小天地，天地之五行即人身体的五行。人身之五脏五行为肺金、心火、肝木、肾水、脾土五行为人体五脏之能的五种活动现象。
兹以肺金为例：肺主气、气动即为风，风即能，金能传热能，吸热能，散热能，吸入呼出含有水份的空气，蒸发水气，冬天口鼻可见呼出白茫茫的水蒸气是热热的，为肺金受心火生热，蒸发水气成热能所生之余热能。肺主皮毛，皮毛被全身肌肤之表，皮肤毛孔亦司呼吸排汗散热、吸热、传热之功能，夏天热汗多，汗亦与呼吸之散水气同，汗多则肾排尿少，冬天汗少则尿多，是为肺金调节体温、吸热、散热、传热使温度上升，下降为金的作用。
火有君火、相火、火即热能自然界太阳为君火，地球的内热为相火，心为君火，肾中之阳为相火，火藉金而传，营养火化生热能，心主血液，主全身热的能源，运动心跳加速，则肺呼吸加速呼吸空气，以散心火所生之热，风断即气绝，气绝即身死，人死体温散失，体温即是火，身体骤冷，皮肉腐烂，水汁无火蒸动气化而流失。
木为生火之源，肝为木，肝主筋脉，护卫血液，使血液有沟渠血管可循，不致火热能泛滥，内经言：肝脏血，卧则血归于肝即肝如电流之充电，醒后肝血源源不断供应心脏利用，心因以产生活力火，肝供应心脏血液，肝血尽则疲倦欲睡，睡醒则肝如充电般充血而体力恢复。Ｂ型肝炎因肝受感冒化学药物中毒与风寒所阻，致肝不能充血，血不能归于肝，则肝无血以供应心脏火使用，故人始终疲倦嗜卧，醒则口苦口干，肺金吸热散热太快，消耗心火所生之热，皆足以令肝血加速枯竭，致肝所主之筋脉，受风寒不能护卫血液循环，而筋骨酸痛，甚至抽筋，故内经云：诸风掉眩，皆属于肝。是为木生火，而金克木。
肾为水脏，中医学上的补肾壮阳，阳为生命的生生之能，肾为生命之始，补肾是补生命之源亦即是补全身，壮阳即是强化生命的生生之能源，男女皆可补肾壮阳，而不是狭义的补男人的阳具。
内经灵枢经脉第十黄帝曰：人始生，先成精，精而脑髓生，骨为干，脉为营，筋为刚，肉为墙，皮肤强而毛发长，谷入于胃，脉道以通，血气乃行。又曰：肾主骨，骨主髓。肾主骨，肾为水气所生，骨为筋、脉木气联结之支架，肾中之阳强，则可使肝木生长茂盛，肝木强则心火之能源能获得供给无虞，活力旺盛，肾中之阴水旺，则可降低心火所耗之能，而助肝木藏血之耗失，肾水旺则火自平，故曰滋阴降火。
脾属土，土能生养万物，脾主肌肉，土旺则饮食健而肌肉强，甘津之气布溢，全身得以润泽，肌肉强能致皮肤具弹性光泽，发挥肺的吸热、散热、传热功能，食不甘美则肌肉衰，致皮肤弹性失，肺金气弱而元气衰，是为土生金。
天气下降为雨、为水，水气上升为云为雾，在日常生活中，天气下降为雨为水，大家都能看见，水气上升为云、雾时，除廿四节气时，大家都不易看见，肺强金盛，小便通利，大便顺畅，肺衰金弱，水不能气化上升为能，致肺呼吸所得之水气不能下降，致小便不利而留为肿，是为今日尿毒症，为肺、肾金水不能相生所致。
五脏各司气的上升、下降、扩张、收缩与稳定，即身体五脏六腑皆在作呼吸的作用，不光是肺在作呼吸作用。
肺金将空气吸入体内，是为气的收缩，肝木将空气呼出体外，是为气的扩张，心火将凝结之气能加热使之上升，上升能助气的扩张，肾水将气凝结使之下降，下降能助肺金气的收缩。上升不能太快，下降亦不能太快，收缩不能太快，扩张亦不能太快，是为气的稳定，即脾土的作用。如图四五行相生相克为气动的均衡至中和之理，是电、能的传动，不是五行相生，更不是五行相克，而是五行相生相克，即能的升、降、扩散、收敛与稳定如环无端，周而复始，失一不可，不偏不倚，不可太过，不可不及，故圣人倡中庸之道，乃为中医之至理，是以五行身命的气化，与十二经络的周易－即易经－－乃为医疗获取健康之最高境界。
观之今日科学再怎么进步，药物再怎样特效，就像再好的农药亦消灭不了虫害问题，而最终的受害者仍是人类本身，医疗科技的进步，解决不了人类疾病健康问题。甚至造成身体更大的伤害，为解决此问题，只有让人类重新认识中医学理－－十二经络病变，阴阳五行的均衡之脏象学说。
大脑如同天体中的阴阳，以大脑中三十六条小神经腺（对应天上的三十六天罡）接收来自太阳、月亮和星星的电波，汇聚融合形成大脑的十条中枢神经。这十条中枢神经在道家被称为“十天干”，其会聚点名为任脉。它在人体前方有三八四条神经，对应农历闰年的三百六十四天，主要主管人体全身动静脉的小血管，具有记忆、发音、辨色、说话及产生智慧等功能。
小脑如同大地中的阴阳，以小脑的七十二条小神经（对应地下的七十二地煞）接收地下水、火、风等电波，经由脚底的涌泉穴到达会阴穴的七十二圆觉处，再经脊髓传至小脑汇聚成七十二地煞，进而融合形成小脑的十二条周围神经。这十二条周围神经在道家被称为“十二地支”，其聚会点名为督脉。在人体后方有三十一对神经，对应一个月的大致天数，又细分为三百六十五条小神经，对应阳历的三百六十五天，它使人能够举手投足、活动自如。
因此，“天干”和“地支”之名源于日、月、星之电波与地球自身水、火、风等人身体产生的电波相互作用。任脉和督脉在人体前后交互环绕运行，就像原子中的电子环绕、地球上的月亮环绕旋转一样。大脑和小脑的神经相互配合循环，全身的血液和神经便不断活动。因此，练习气功和禅坐的人若能打通任脉和督脉，就能加强天地电波的输入，通过调息养生而不易生病。用现代仪器扫描可以发现，健康人的任脉（十天干会合点）和督脉（十二地支会合点）清明润滑如露珠，尤其是修炼气功的高深者更为明显；而病人的任脉和督脉则像结冰的水，病情危重者凝结如冰更甚。
人自出生后，即受到后天呼吸、情绪、饮食、气候和环境等因素变化的影响，身体进行各种生理调节以适应环境。这种以天干、地支电流为基础，构成十二经络、十五别络、奇经八脉，并归藏于五脏六腑的经络循环，因《易经》商代版本名为《归藏》，故以此命名。十二经络分属六阴六阳，随着出生后每个时辰、日、月、节气、四季、年、十年、六十年的周期规律，经脉的气血电流呈现强弱、盛衰的变化，这是一种阶段性的电位高低调整。这种连绵如山的电流循环，因《易经》夏代版本名为《连山》，故以此命名。这是人出生后五脏六腑和十二经络阴阳循环运行的过程，正如《易经》的重卦现象（如图三所示）。
人体六阴六阳十二经络的电位盛衰、强弱和高低变化，从出生后的每个时辰、每日、每月、二十四节气、四季以及每年、每十年、每六十年，随天干（甲、乙、丙、丁、戊、己、庚、辛、壬、癸）和地支（子、丑、寅、卯、辰、巳、午、未、申、酉、戌、亥）的阴阳经络循环重卦现象而变化，这是中医生理学的主要主题。
例如，从出生到十岁，是手足少阳三焦经和胆经的气血运行阶段；十一岁到二十岁，是手足阳明大肠经和胃经的气血运行阶段；二十一岁到三十岁，是手足太阳小肠经和膀胱经的气血运行阶段。三阳经的气血运行到三十岁结束，身体的生长发育也至此停止。到了三十一岁到四十岁，是手足少阴心经和肾经的气血运行阶段；四十一岁到五十岁，是手足太阴肺经和脾经的气血运行阶段；五十一岁到六十岁，是手足厥阴心包经和肝经的气血运行阶段。三阴经的气血运行到六十岁停止。从出生到六十岁，三阳经气血运行时是身体脏腑经络生长发育的阶段；三阴经气血运行时是脏腑经络生长发育达到极点而呈现衰萎虚弱的历程。这样，从出生到六十岁，从生长发育到衰老，完成了身体生化过程的一个甲子循环，这与天地星辰运行六十年发生一次变化的规律相同，经络运行也从头开始重新循环。经络的这种循环变化称为《易经》，经络周而复始的循环变化称为《周易》。常言道：老人的性格与小孩的性格相似，实际上是因为六十岁后经络重新循环的缘故。
中国医学的生理学认为，从怀孕到出生时的先天生理变化为八卦之体——即先天八卦。而从出生时刻起到六十岁的生理变化，随年龄增长，受天上日、月、星辰以及地球本身水、火、风的电波，加上人为环境、饮食、情绪、心理等因素的影响，是以十二经络、阴阳相互作用为基础，演变为《易经》八八六十四卦的动态变化理论，这是八卦的运用——即后天八卦。
例如，地球表面约百分之七十以上是水，人体水分比例也约为百分之七十。地球海水受月亮朔望影响产生潮汐变化，人体水分也应受月亮朔望变化的影响。地球的磁场是因地球含铁作用而发生，人的血液含有铁质，故人体也受地球磁场的作用和影响。因此，人体时时处处都受天地之气的影响而变化。
由上可知，人是小天地，《黄帝内经》蕴含了天文、历法、气象与医学的关系。所以，《黄帝内经》所言的致病之源和养生之道，即便今日科学发达，人体构造和疾病医疗的研究，仍离不开五行生克和十二经络阴阳消长的易变原理。因此，要解决医疗困惑的根本大道，唯有让大家重新认识中国医学。要知道人生不是三五天或三五年，而是几十年的生理变化。中医治病应当知晓六十年的规律，今日某条经络或器官受手术伤害，在一段时间或十年、二十年后，该经络气血的旺衰对人体造成的危害，实在难以言喻。
当今西医动辄进行手术，却不明白中国医学中人体十二经络、五脏六腑的气血随年龄岁月旺衰而生阴阳消长、五行生克的道理，导致手术和用药不当造成六经传变（即所谓疾病的合并症）和药物副作用，这是贻误病患的错误学说。针灸仅用一支小小的毫针，就能对人体产生极大变化，而手术则造成人体的终身危害，更何况器官移植呢？
例如当今妇女的剖腹产、输卵管结扎、子宫肌瘤癌切除、堕胎、甲状腺手术等任何手术，患者因不明白动手术对经络循环的伤害，直到四十岁时，当经络气血运行到手少阴心经和足少阴肾经时，才导致日后身体健康的危害，出现心脏无力、腰酸背痛等各种症状。特别是手术时，麻醉药剂对腰椎命门穴的麻醉特效，造成妇女脑力急剧退化。这是因为中医生理学认为肾为生命之源，腰为肾之府，肾主骨，骨主髓，脑为髓海。伤害腰部即伤害肾，伤害肾即伤害脑，这是对全身生命之源的伤害，实令妇女健康陷入无语问苍天的悲剧。妇女骨质疏松症、老人痴呆症即因肾脏衰弱所造成。
《黄帝内经》阐述阴阳奥秘和致病之源，《上古天真论篇第一》说：上古时期的人，懂得道的人，效法阴阳，调和术数，饮食有节制，起居有规律，不妄加劳累，所以能形体与精神俱备，尽享天然寿命，活到百岁才离开。现在的人却不是这样，把酒当水喝，把妄为当常态，醉酒后行房事，以欲望耗尽精气，以耗散损耗真气，不知道保持充盈，不时调控精神，只求心意快乐，违背生命的乐趣，起居无节制，所以半百就衰老了。上古圣人对下民的教诲是：对于虚邪贼风，要适时避开；心境恬淡虚无，真气就会顺从；精神内守，病从哪里来呢？因此志向闲适而欲望少，心安而不恐惧，形体劳作而不疲倦，气机顺从，各随其欲皆得所愿，所以觉得食物美味，穿着随意，风俗安乐，高低不相羡慕，百姓因此质朴。所以嗜欲不能劳损眼睛，淫邪不能迷惑心灵；无论愚智贤不肖，都不被外物惊扰，所以合乎道，因此都能活到百岁，动作不衰败，是因为他们道德完备而不衰败。
由上述《黄帝内经》可知，避免疾病、获得健康、延长寿命，重在养生，预防重于治疗。此预防不是指预防针，也不在于价值几千几百万的科学仪器或医生医术的高低，因此发扬中医学理实刻不容缓。
◎ 先天八卦、后天八卦、重卦源引吾师刘公培中“三才合一”秘诀。
中国医学以人类实际生活经验和整个宇宙的变化为实验室，即疾病由日常生活中罹患，而疾病的痊愈，亦可由日常生活中寻求自然的解决。这是由先贤智能的推理与经验累积，对大自然、环境的各种冲击与适应，不论在任何变因之下，中医皆以阴阳五行生克不变应万变，也确实能为人类健康医疗提供实际应用之实用医学。故有“有为医不明十二经络，开口动手便错”以及“熟读王叔和，不如临症多”的明训，经验较任何空洞理论与书本记载可靠得多。
中医学理与中药原本一体，但如今常见中草药毒性研究报告，以及劝民众服用中草药应加斟酌的文章，却不见能令大众明白什么是中医学理、中药学理的研究报告。
中医学理的源头《黄帝内经》，与药物学的《神农本草》到《本草纲目》，对病与药的阴阳五行生克，自神农尝百草，一日遇七十毒，诸药的性味，有毒无毒，及其祛毒、炮制方法，对人的适应性，成方的配伍禁忌，君臣佐使，入何经络，对疾病的疗效，皆有详细记载和论述。这是诸先贤的累积经验，五行生克与药物的君臣佐使，甚至出神入化地使用以达到医疗目的，免除药物对人体的危害副作用，都有很翔实的记载。
中国医学从生理解剖、移植及药物治疗的经验中发现，疾病因药物、饮食、气候、情绪等在经络脏腑的传变并发症或副作用，阴阳五行生克医疗学理的建立，除外伤国术馆的手术保留，其余解剖、移植、手术的被废除，实有一段长远的历程。常听人说阴阳五行相生相克，到底什么是阴阳五行相生相克呢？
(一) 什么是五行相生相克呢？
宇宙间上下左右与中心五点均衡的基本动能，为能的升、降、扩散、收缩与稳定，其作用综合分别为火、水、木、金、土代表之。能的生长为阳，消耗为阴，能的助力为生，阻力为克。人为小天地，天地之五行即人身体的五行。人身之五脏五行为肺金、心火、肝木、肾水、脾土。五行为人体五脏之能的五种活动现象。
兹以肺金为例：肺主气，气动即为风，风即能。金能传热能，吸热能，散热能。吸入呼出含有水份的空气，蒸发水气，冬天口鼻可见呼出白茫茫的水蒸气是热热的，为肺金受心火生热，蒸发水气成热能所生之余热能。肺主皮毛，皮毛被覆全身肌肤之表，皮肤毛孔亦司呼吸排汗散热、吸热、传热之功能。夏天热汗多，汗亦与呼吸之散水气同，汗多则肾排尿少，冬天汗少则尿多，是为肺金调节体温、吸热、散热、传热使温度上升、下降为金的作用。
火有君火、相火。火即热能。自然界太阳为君火，地球的内热为相火，心为君火，肾中之阳为相火。火藉金而传，营养火化生热能。心主血液，主全身热的能源。运动心跳加速，则肺呼吸加速呼吸空气，以散心火所生之热。风断即气绝，气绝即身死。人死体温散失，体温即是火。身体骤冷，皮肉腐烂，水汁无火蒸动气化而流失。
木为生火之源，肝为木。肝主筋脉，护卫血液，使血液有沟渠血管可循，不致火热能泛滥。《内经》言：肝脏血，卧则血归于肝，即肝如电流之充电，醒后肝血源源不断供应心脏利用，心因以产生活力火。肝供应心脏血液，肝血尽则疲倦欲睡，睡醒则肝如充电般充血而体力恢复。B型肝炎因肝受感冒化学药物中毒与风寒所阻，致肝不能充血，血不能归于肝，则肝无血以供应心脏火使用，故人始终疲倦嗜卧，醒则口苦口干。肺金吸热散热太快，消耗心火所生之热，皆足以令肝血加速枯竭，致肝所主之筋脉，受风寒不能护卫血液循环，而筋骨酸痛，甚至抽筋。故《内经》云：诸风掉眩，皆属于肝。是为木生火，而金克木。
肾为水脏。中医学上的补肾壮阳，阳为生命的生生之能。肾为生命之始，补肾是补生命之源，亦即是补全身。壮阳即是强化生命的生生之能源。男女皆可补肾壮阳，而不是狭义的补男人的阳具。
《内经·灵枢·经脉第十》黄帝曰：人始生，先成精，精而脑髓生，骨为干，脉为营，筋为刚，肉为墙，皮肤强而毛发长，谷入于胃，脉道以通，血气乃行。又曰：肾主骨，骨主髓。肾主骨，肾为水气所生，骨为筋、脉木气联结之支架。肾中之阳强，则可使肝木生长茂盛，肝木强则心火之能源能获得供给无虞，活力旺盛。肾中之阴水旺，则可降低心火所耗之能，而助肝木藏血之耗失。肾水旺则火自平，故曰滋阴降火。
脾属土，土能生养万物。脾主肌肉，土旺则饮食健而肌肉强，甘津之气布溢，全身得以润泽。肌肉强能致皮肤具弹性光泽，发挥肺的吸热、散热、传热功能。食不甘美则肌肉衰，致皮肤弹性失，肺金气弱而元气衰，是为土生金。
天气下降为雨、为水，水气上升为云为雾。在日常生活中，天气下降为雨为水，大家都能看见，水气上升为云、雾时，除廿四节气时，大家都不易看见。肺强金盛，小便通利，大便顺畅；肺衰金弱，水不能气化上升为能，致肺呼吸所得之水气不能下降，致小便不利而留为肿，是为今日尿毒症，为肺、肾金水不能相生所致。
五脏各司气的上升、下降、扩张、收缩与稳定，即身体五脏六腑皆在作呼吸的作用，不光是肺在作呼吸作用。
肺金将空气吸入体内，是为气的收缩；肝木将空气呼出体外，是为气的扩张；心火将凝结之气能加热使之上升，上升能助气的扩张；肾水将气凝结使之下降，下降能助肺金气的收缩。上升不能太快，下降亦不能太快，收缩不能太快，扩张亦不能太快，是为气的稳定，即脾土的作用。如图四，五行相生相克为气动的均衡至中和之理，是电、能的传动，不是五行相生，更不是五行相克，而是五行相生相克，即能的升、降、扩散、收敛与稳定如环无端，周而复始，失一不可，不偏不倚，不可太过，不可不及。故圣人倡中庸之道，乃为中医之至理。是以五行身命的气化，与十二经络的《周易》——即《易经》——乃为医疗获取健康之最高境界。
观之今日科学再怎么进步，药物再怎样特效，就像再好的农药亦消灭不了虫害问题，而最终的受害者仍是人类本身，医疗科技的进步，解决不了人类疾病健康问题。甚至造成身体更大的伤害。为解决此问题，只有让人类重新认识中医学理——十二经络病变，阴阳五行的均衡之脏象学说。
The brain, akin to the Yin and Yang of the heavens, utilizes thirty-six small neural glands (corresponding to the Thirty-Six Heavenly Stems in Daoist cosmology) within the brain to receive electromagnetic waves from the sun, moon, and stars. These converge to form ten central nerves of the brain. In Daoism, these ten central nerves are called the "Ten Heavenly Stems" (Shi Tian Gan), and their convergence point is named the Ren Mai (Conception Vessel). Located on the anterior aspect of the human body, there are three hundred and sixty-four nerves corresponding to the three hundred and sixty-four days of a leap year in the lunar calendar. It governs the small blood vessels of the systemic arteries and veins, possessing functions such as memory, phonation, color discrimination, speech, and the generation of intelligence.
The cerebellum, akin to the Yin and Yang of the earth, utilizes seventy-two small nerves of the cerebellum (corresponding to the Seventy-Two Earthly Fiends in Daoist cosmology) to receive electromagnetic waves from underground water, fire, and wind. These travel via the Yongquan acupoint (KI1, Springing泉) at the sole of the foot to the Huiyin acupoint (CV12, Meeting of Yin) where seventy-two Yuanjue points reside, then proceed through the spinal cord to the cerebellum to gather as the Seventy-Two Earthly Fiends. These converge to form twelve peripheral nerves of the cerebellum. In Daoism, these twelve peripheral nerves are called the "Twelve Earthly Branches" (Shi Er Di Zhi), and their gathering point is named the Du Mai (Governing Vessel). Located on the posterior aspect of the human body, there are thirty-one pairs of nerves corresponding to the approximate number of days in a month, further subdivided into three hundred and sixty-five small nerves corresponding to the three hundred and sixty-five days of the solar calendar. These enable free movement and action of the limbs.
Therefore, the terms "Heavenly Stems" and "Earthly Branches" derive from the interaction between the electromagnetic waves of the sun, moon, and stars, and the electromagnetic waves generated by water, fire, and wind within the earth and the human body. The Ren Mai and Du Mai circulate and interweave around the anterior and posterior aspects of the body, similar to electrons orbiting an atom or the moon orbiting the earth. When the nerves of the cerebrum and cerebellum cooperate and circulate, the blood vessels and nerves of the entire body remain active. Thus, individuals practicing Qigong and Zen meditation who can unblock the Ren Mai and Du Mai can enhance the input of heavenly and earthly electromagnetic waves, regulating breath and nourishing life to prevent illness. Modern imaging scans reveal that in healthy individuals, the convergence points of the Ren Mai (Ten Heavenly Stems) and Du Mai (Twelve Earthly Branches) are clear and lubricated like dewdrops, especially in advanced practitioners. Conversely, in patients, these points resemble frozen water; in critical cases, they are solidified like ice.
From birth, humans are influenced by postnatal factors such as respiration, emotions, diet, climate, and environment, prompting various physiological adjustments for adaptation. This meridian circulation, constituted by the currents of the Heavenly Stems and Earthly Branches forming the Twelve Primary Meridians, Fifteen Luo Collaterals, and Eight Extraordinary Vessels, which return to the Five Zang and Six Fu organs, is named after the Shang Dynasty version of the *I Ching* (Book of Changes), known as *Gui Cang* (Returning to Storage). The Twelve Primary Meridians, divided into six Yin and six Yang, undergo periodic changes in qi and blood current strength and decline according to cycles of hours, days, months, solar terms, seasons, years, decades, and sixty-year periods. This represents a stage-wise adjustment of potential levels. This continuous circulation of current, resembling mountains, is named after the Xia Dynasty version of the *I Ching*, known as *Lian Shan* (Connected Mountains). This describes the Yin-Yang circulatory operation of the Five Zang and Six Fu organs and the Twelve Primary Meridians after birth, analogous to the hexagram stacking phenomenon in the *I Ching* (see Figure 3).
The fluctuation of potential levels (strength, weakness, high, low) in the six Yin and six Yang Twelve Primary Meridians follows the cyclical hexagram phenomena of Yin-Yang meridians associated with the Heavenly Stems (Jia, Yi, Bing, Ding, Wu, Ji, Geng, Xin, Ren, Gui) and Earthly Branches (Zi, Chou, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu, Hai) across time scales from hours to sixty years. This constitutes the main theme of TCM physiology.
For instance, from birth to age ten, the Qi of the Hand and Foot Shaoyang Sanjiao (Triple Burner) and Gallbladder meridians prevails; from eleven to twenty, the Qi of the Hand and Foot Yangming Large Intestine and Stomach meridians prevails; from twenty-one to thirty, the Qi of the Hand and Foot Taiyang Small Intestine and Bladder meridians prevails. The flow of Yang Qi ends at thirty, marking the cessation of physical growth and development. From thirty-one to forty, the Qi of the Hand and Foot Shaoyin Heart and Kidney meridians prevails; from forty-one to fifty, the Qi of the Hand and Foot Taiyin Lung and Spleen meridians prevails; from fifty-one to sixty, the Qi of the Hand and Foot Jueyin Pericardium and Liver meridians prevails. The flow of Yin Qi ceases at sixty. From birth to sixty, the period of Yang Qi flow corresponds to the growth and development phase of organs and meridians; the period of Yin Qi flow corresponds to the phase where organ and meridian development reaches its peak and begins to decline and weaken. Thus, from birth to sixty, the cycle of growth to senescence completes one Jiazi (sixty-year cycle), mirroring the cosmic changes every sixty years, causing meridians to restart their circulation. This cyclic change is called *Yi Jing* (Changes), and the repetitive cycle is called *Zhou Yi* (Circular Changes). It is often said that the personality of the elderly resembles that of children because meridians re-circulate after age sixty.
TCM physiology views pre-natal physiological changes from conception to birth as the Form of the Eight Trigrams—specifically, the Pre-Heaven Ba Gua. Post-natal physiological changes from birth to sixty, influenced by celestial bodies, terrestrial elements (water, fire, wind), and environmental, dietary, emotional, and psychological factors, utilize the Twelve Primary Meridians and Yin-Yang interactions as the foundation for dynamic changes represented by the sixty-four hexagrams of the *I Ching*. This is the Application of the Eight Trigrams—specifically, the Post-Heaven Ba Gua.
For example, over seventy percent of the earth's surface is water, and the human body also consists of approximately seventy percent water. Just as ocean tides are affected by the lunar phases, human body fluids are similarly influenced. The earth's magnetic field arises from its iron content; since human blood contains iron, the human body is also affected by the earth's magnetic field. Thus, the human body is constantly influenced by the Qi of heaven and earth.
As derived above, humans are microcosms. The *Huangdi Neijing* (Yellow Emperor's Inner Canon) encompasses the relationships between astronomy, calendrics, meteorology, and medicine. Therefore, despite modern scientific advancements in anatomy and disease treatment, understanding pathology and health remains rooted in the principles of the Five Elements' generation and restriction, and the Yin-Yang waxing and waning of the Twelve Primary Meridians. To resolve medical dilemmas, it is essential to re-understand TCM. Human life spans decades, not days. TCM treatment must account for sixty-year cycles; injuries to specific meridians or organs via surgery may have unforeseen impacts on Qi and Blood dynamics decades later.
Modern Western medicine often relies on surgery without understanding how Qi and Blood in the Twelve Primary Meridians and Five Zang/Six Fu organs wax and wane with age, leading to improper surgeries or medications that cause Six Meridian transmission (complications) and side effects, thereby harming patients. Acupuncture, using only a fine needle, induces significant changes, whereas surgery causes lifelong harm, let alone organ transplantation.
For example, procedures such as cesarean sections, tubal ligations, hysterectomies for fibroids/cancer, abortions, or thyroid surgeries can harm meridian circulation. Patients may not experience adverse effects until age forty, when Qi flows into the Hand Shaoyin Heart and Foot Shaoyin Kidney meridians, resulting in heart weakness, back pain, etc. Anesthesia affecting the Mingmen acupoint (GV4, Gate of Life) in the lumbar region can cause rapid cognitive decline. TCM physiology states the Kidney is the source of life, the waist is the residence of the Kidney, the Kidney governs bones, bones generate marrow, and the brain is the sea of marrow. Damaging the waist harms the Kidney, which harms the brain, damaging the source of life. This contributes to osteoporosis and dementia in women due to Kidney deficiency.
The *Huangdi Neijing* elucidates the secrets of Yin-Yang and the sources of disease. Chapter 1, *Shanggu Tianzhen Lun* (Discussion on Natural Vitality in Antiquity), states: People in antiquity who understood the Dao modeled themselves on Yin and Yang, harmonized with techniques, regulated diet and sleep, avoided excessive labor, and thus maintained body and spirit, living out their natural lifespan beyond a hundred years. Today's people do not act this way; they treat wine as water, live recklessly, engage in intercourse while drunk, exhaust essence through desire, dissipate true Qi, fail to maintain fullness, neglect spiritual regulation, seek fleeting pleasure against nature, and lack routine, thus aging prematurely by fifty. The sages taught avoiding evil winds and pathogens, maintaining tranquility and emptiness so True Qi follows, guarding spirit internally so disease cannot arise. With few desires and peace of mind, even with physical labor, Qi remains smooth. Everyone finds satisfaction in food, clothing, and customs, without envy, remaining simple. Desires do not blind, and immorality does not confuse. Whether wise or foolish, they are not disturbed by external things, aligning with the Dao, thus living past a hundred with vigorous movements due to complete virtue.
Thus, avoiding disease, gaining health, and extending life depend on preservation and prevention, not just vaccines or expensive technology. Promoting TCM theory is urgent.
◎ The origins of Pre-Heaven Ba Gua, Post-Heaven Ba Gua, and Hexagram Stacking are derived from my teacher, Mr. Liu Peizhong's secret of "San Cai He Yi" (Harmony of Heaven, Earth, and Humanity).
II. TCM Theory ---- Yin-Yang and Five Elements
TCM uses human life experience and universal changes as its laboratory. Diseases arise in daily life and can be healed naturally through daily life. Based on ancient wisdom and accumulated experience adapting to nature, TCM uses the immutable principles of Yin-Yang and Five Elements generation/restriction to address all variables, providing practical medicine for health. Hence, "A physician who does not understand the Twelve Primary Meridians will err upon speaking or treating." Experience is more reliable than empty theories or books.
TCM theory and herbal medicine were originally integrated. However, while reports on herb toxicity and warnings abound, studies explaining TCM theory and pharmacology to the public are lacking.
The *Huangdi Neijing* (theory) and *Shennong Bencao Jing* to *Bencao Gangmu* (pharmacology) detail the Yin-Yang and Five Elements interactions of diseases and drugs. Since Shennong tasted hundreds of herbs and encountered seventy poisons a day, records exist on drug properties, toxicity, detoxification, processing, compatibility, contraindications, Jun-Chen-Zuo-Shi (Monarch-Minister-Assistant-Courier) roles, meridian tropism, and efficacy. These accumulated experiences detail how to use Five Elements principles and drug combinations to achieve therapeutic goals while minimizing side effects.
Historically, TCM moved away from anatomy and surgery due to complications from drugs, diet, and climate, establishing the theory of Five Elements generation/restriction. Surgery was largely abandoned except for trauma. But what exactly are the generation and restriction of the Five Elements?
(1) What are the Generation and Restriction of the Five Elements?
The basic kinetic energy balancing the universe (up, down, left, right, center) involves rising, falling, expanding, contracting, and stabilizing. These correspond to Fire, Water, Wood, Metal, and Earth. Growth is Yang; consumption is Yin. Assistance is Generation; resistance is Restriction. Humans are microcosms; the Five Elements of heaven and earth are the Five Elements of the human body. The Five Zang organs correspond to Metal (Lung), Fire (Heart), Wood (Liver), Water (Kidney), and Earth (Spleen). These represent five energetic activities.
Taking Lung Metal as an example: The Lung governs Qi. Qi movement is Wind, which is Energy. Metal conducts, absorbs, and dissipates heat. Inhaling and exhaling moisture-laden air evaporates water vapor. In winter, visible warm breath is residual heat from Lung Metal absorbing heat from Heart Fire. The Lung governs skin and hair. Skin pores regulate respiration, sweating, heat dissipation, absorption, and conduction. Summer sweat reduces kidney urination; winter sweat reduction increases urination. This temperature regulation is the function of Metal.
Fire includes Sovereign Fire and Ministerial Fire. The sun is Sovereign Fire; earth's internal heat is Ministerial Fire. The Heart is Sovereign Fire; Kidney Yang is Ministerial Fire. Fire transmits via Metal. Nutrition generates heat via fire. The Heart governs blood and thermal energy. Exercise increases heart rate and lung respiration to dissipate Heart Fire heat. If wind stops, Qi ceases, and death occurs. Body heat loss leads to decay.
Wood is the source of Fire; the Liver is Wood. The Liver governs sinews and protects blood, ensuring it flows through vessels without flooding. *Neijing* states: "The Liver stores blood; when lying down, blood returns to the Liver," like charging a battery. Upon waking, Liver blood supplies the Heart, generating vitality. If Liver blood is exhausted, fatigue ensues; rest restores it. Hepatitis B blocks Liver blood return due to toxins/cold, causing constant fatigue and bitter taste. Rapid Lung Metal heat dissipation depletes Heart Fire heat, accelerating Liver blood depletion, leading to tendon issues and cramps. Hence, *Neijing*: "All wind, tremors, and dizziness belong to the Liver." This illustrates Wood generating Fire, and Metal restricting Wood.
The Kidney is the Water organ. Tonifying the Kidney strengthens Yang, the generative energy of life. The Kidney is the beginning of life; tonifying it benefits the whole body. Strengthening Yang enhances generative energy for both men and women, not merely sexual function.
*Ling Shu, Channel Meridian Chapter 10*: "When man is born, Essence forms first, generating Marrow and Brain. Bone is the framework, Vessels supply nutrients, Sinews provide strength, Flesh is the wall, Skin/Hair grow strong. Grain enters the Stomach, channels open, Qi and Blood flow." Also: "Kidney governs bone, bone governs marrow." Kidney Water generates bone, supporting Wood (sinews/vessels). Strong Kidney Yang promotes Liver Wood growth, supplying Heart Fire. Strong Kidney Yin reduces Heart Fire consumption, aiding Liver blood storage. "Nourishing Yin lowers Fire."
Spleen is Earth, nurturing all things. The Spleen governs muscle. Strong Earth means good digestion and strong muscles, distributing sweet fluids to moisten the body. Strong muscles give skin elasticity, aiding Lung Metal's heat functions. Poor appetite weakens muscle and Lung Qi, illustrating Earth generating Metal.
Weather descends as rain/water; water vapor rises as clouds/fog. Visible descending rain is common; rising vapor is less visible except during solar terms. Strong Lung Metal ensures smooth urination/bowel movements. Weak Lung Metal fails to transform water vapor, leading to edema/uremia due to failed Metal-Water generation.
The Five Zang govern rising, falling, expanding, contracting, and stabilizing, meaning all organs participate in respiration, not just the Lungs.
Lung Metal inhaling is contraction; Liver Wood exhaling is expansion. Heart Fire heating condensed Qi aids expansion. Kidney Water condensing Qi aids Lung contraction. Balanced speed of rise/fall/contraction/expansion is stability, governed by Spleen Earth. Figure 4 shows Five Elements generation/restriction as equilibrium of Qi movement, representing electrical/energy transmission, not literal elemental interaction, but the cycle of energy rising, falling, diffusing, converging, and stabilizing endlessly. This balance is the Golden Mean, the highest principle of TCM. The Qi transformation of the Five Elements and the *Zhou Yi* of the Twelve Primary Meridians represent the highest state of health.
Despite scientific progress and potent drugs, like pesticides failing to eliminate pests, medical technology cannot fully solve human health issues and may cause greater harm. The solution lies in re-understanding TCM theory—the pathology of the Twelve Primary Meridians and the balanced Zang-Xiang theory of Yin-Yang and Five Elements.