My grandmother had a saying: “The wind is the father of ten thousand illnesses.” In TCM, Wind (Feng) is the primary external pathogen, but there are five others: Cold, Heat, Dampness, Dryness, and Summer Heat.
Understanding these external factors is the foundation of TCM prevention.
The Six Pernicious Influences (Liu Yin)
These are external energies that can invade the body when your Defensive Qi (Wei Qi) is weak:
1. Wind (Feng)
Characteristics: Sudden onset, moves quickly, affects upper body
Symptoms: Aches, fever, aversion to wind, sneezing
Key point: Wind is the “spearhead” that other pathogens use to enter
2. Cold (Han)
Characteristics: Contracts, slows, heavy
Symptoms: Severe chills, no fever, body aches, clear discharge
3. Heat (Shu)
Characteristics: Rises, inflames, dries
Symptoms: Fever, thirst, red face, yellow discharge
4. Dampness (Shi)
Characteristics: Heavy, sticky, slow
Symptoms: Feeling of heaviness, foggy head, diarrhea, lethargy
5. Dryness (Zao)
Characteristics: Dries fluids, affects Lung
Symptoms: Dry skin, dry cough, dry mouth, constipation
6. Summer Heat (Shu)
Characteristics: Only in summer, combines heat and dampness
Symptoms: Fever, thirst, heaviness, nausea
Prevention Through Defensive Qi
Your Wei Qi (immune system) protects you from these pathogens. Strengthen it by:
- Getting adequate sleep
- Avoiding overexertion
- Eating warming foods in cold weather
- Dressing appropriately for weather
Quick reference:
- Wind: Sudden symptoms, head affected
- Cold: Chills dominate, no thirst
- Heat: Fever dominates, thirst
- Dampness: Heavy, foggy feeling