Introduction to Traditional Chinese Medicine

Impact of Occupation on Health
- A patient's occupational environment and daily activities serve as critical indicators of potential internal imbalances in Traditional Chinese Medicine (TCM).
- Example: Physical Labor
  - A construction worker consistently lifting and carrying heavy objects is prone to straining the $Kidneys$ , which govern the bones and lower back in TCM theory.
  - Chronic overexertion can lead to the depletion of $Liver\ Blood$ or $Liver\ Yin$ , affecting the tendons and ligaments (which are controlled by the Liver).
  - Environmental exposure (e.g., dampness or cold on a work site) can further penetrate the joints, leading to obstruction syndromes.

Objective Three: Understanding Mechanisms
- The course focuses on the fundamental logic of disease through:
  - Pathogenesis: The "How" regarding the development and evolution of a disease. This involves the struggle between the body's upright $Qi$ ( $Zheng\ Qi$ ) and pathogenic factors ( $Xie\ Qi$ ).
  - Etiology: The "Why" regarding the origins of disease, including external pathogens ( $Wind, Cold, Summer-Heat, Damp, Dryness, Fire$ ), internal emotions ( $Anger, Joy, Worry, Pensiveness, Sadness, Fear, Shock$ ), and miscellaneous factors (lifestyle, trauma).
- Yin and Yang Pathology:
  - Health is defined as a dynamic balance ( $Yin-Yang$ equilibrium).
  - Disease arises from Excess (an abundance of a pathogen) or Deficiency (a lack of vital substances).
  - $Yin$ deficiency often leads to "empty-heat" symptoms, while $Yang$ deficiency leads to "empty-cold" symptoms.
- Chi (Qi) Mechanisms: Focused on the movement of $Qi$ including ascending, descending, entering, and exiting.

Questioning (Wèn): Systematic history taking to gather subjective data.
Inspection (Wàng): Observing the "Shen" (spirit), face color, body posture, and especially the tongue (body color, shape, and coating).
Listening and Smelling (Wén): Assessing the strength of the voice, the sound of breathing, and odors from the breath or body.
Palpation (Qiè): Feeling the pulse (at the radial artery) and palpating the abdomen or specific channels for tenderness.

History Taking: The Foundation of Pattern Identification

The Ten Questions (Song of Ten Inquiries): This is a traditional framework used to ensure no symptom is overlooked:
- $1.$ Chills and Fever
- $2.$ Perspiration
- $3.$ Head and Body (pain or sensations)
- $4.$ Thorax and Abdomen (digestion and breathing)
- $5.$ Food and Drink (appetite, thirst, and taste)
- $6.$ Stools and Urine (color, frequency, consistency)
- $7.$ Sleep (insomnia or lethargy)
- $8.$ Ears and Eyes (tinnitus or blurred vision)
- $9.$ Past Medical History and Lifestyle (smoking/drinking)
- $10.$ Emotions and Gynecological history (for women)

Specific Clinical Inquiries

Chills/Fever Patterns:
- Simultaneous Chills and Fever: Typically indicates an exterior attack (e.g., Cold or Flu).
- Alternating Chills and Fever: Classic sign of a $Shao\ Yang$ stage disorder (e.g., malaria-like patterns).
Sweating:
- Daytime Sweating: Often indicates $Yang$ or $Qi$ deficiency.
- Night Sweating: Classically indicative of $Yin$ deficiency.
Headaches: Locations correspond to specific meridians:
- Vertex (Top): $Jue\ Yin$ (Liver).
- Frontal: $Yang\ Ming$ (Stomach/Large Intestine).
- Occipital (Back): $Tai\ Yang$ (Bladder/Small Intestine).
- Temporal (Sides): $Shao\ Yang$ (Gallbladder/Triple Energizer).

Excess (Shi) Syndromes: Characterized by the presence of a strong pathogen.
- Examples: Stomach Fire (intense thirst, bad breath), Phlegm-Heat (yellow sputum), or Blood Stasis (stabbing pain).
Deficiency (Xu) Syndromes: Characterized by the weakness of the body’s energy or substance.
- Examples: Spleen Qi Deficiency (fatigue, loose stools) or Kidney Yang Deficiency (cold limbs, frequent urination).