Abnormal natural climate, plague infection, emotional stimulation, diet fatigue, insect and livestock injury will all lead to yin-yang imbalance.
1. Natural climate: When the climate is abnormal, the six qi (wind, cold, summer, humidity, dryness and fire) are beyond the adaptability of the body and become pathogenic factors. For example, wind evil often invades the muscle surface of the head and face of human body, such as common fever, sweating and bad wind.
2. Plague transmission: Diseases caused by epidemic gas include epidemic disease, epidemic disease and plague. Such as big head plague, dysentery, diphtheria, smallpox, cholera and so on.
3. Internal injuries of seven emotions (emotions, troubles, sadness and fear): anger leads to anger, happiness leads to anger, sadness leads to anger, fear leads to anger, and thinking leads to anger. When sudden intense or long-term emotional stimulation exceeds the range that the human body can adjust, the viscera, yin, yang, qi and blood lose their balance, which leads to the occurrence of diseases. For example, anger leads to excessive qi activity, liver qi goes against it, and red eyes, headache, dizziness and even hematemesis appear.
4. Poor diet: Keep eating when you are hungry and full. Diet is partial to food, cold and hot, overweight, and five flavors (sour, bitter, sweet and salty) are partial to food. An unclean diet.
5. Excessive work and rest: it will affect the formation and operation of human qi and blood, making people sick. Labor, fatigue and overwork.
6. Insect and animal injuries: snake bites, insect bites and rabies bites. Parasitic diseases, etc.