Disgust has a unique place in the mood map. There are some model theories that suggest that disgust is not a basic emotion, but rather an acquired, more complex social emotion, while others argue that disgust is a basic emotion because it has very well-defined physiological characteristics and emotional expressions, and that these responses are culturally consistent. If fear usually contains some kind of "fatal" judgment behind it, then the judgment behind disgust is "toxic" and "pathogenic". Moldy food, cloth stained with unknown slime, infected and festering tissues, foul-smelling garbage, anything dirty and unclean can make us feel disgusted. In fact, I'm guessing you may have felt your own disgust when you read this description.
The perceived bodily disgust is mainly reflected in the throat and stomach, and the most direct bodily sensation is nausea and nausea, and in severe cases, stomach twitching and spasms may occur. When you feel like you've eaten something unclean, the body triggers a vomiting response and excretes toxic substances. If the disgusting object has not been ingested, the person will wrinkle his nose, turn his body sideways, and if possible, push the person away with both hands. At the same time, a person's blood pressure and heart rate will decrease, and even the electrical conduction will decrease. The whole body seems to be trying to reduce contact with the outside world in any way possible to avoid absorbing any toxic substances.
Under the influence of the social environment and cultural education, this disgusted response can be further extended to more abstract concepts and imagery. For example, people who have been raised with a stigma about sex may feel sick at the thought of sex, which can hinder normal sexual behavior as an adult. People also develop a sense of moral disgust, that is, they develop an aversion to socially unacceptable behaviors such as lying, stealing, killing, etc., and people will avoid those who engage in these behaviors, which is a way to keep themselves healthy in a social sense. There are also many emotions of disgust, such as:
Disgust: Mild disgust, indicating that the person does not like something and wants to throw it away, often with a certain disdain in the attitude. But this usually doesn't cause a stronger emotional response, and the person concerned often just snorts, or sighs, and then leaves the matter behind.
Boredom: A more intense aversion, when the person is aware that the stimulus will make the person feel irritated, like a thorn in the back, but not because of fear, but because of boredom and disgust with it.
Disgust: Typical disgust, with typical physical reactions to disgust, such as stomach contractions, nausea. And it is very likely that the person will actively express the disgust, or push the object of disgust away.
Abomination: The brain determines that the other person is "poisonous", and avoids it, feeling that the other person is a source of air pollution, and just seeing it feels as if the poisonous gas will float over, so it will cause the whole body to tense and contract.
"There is no me with him, there is no him without him", such a situation of disagreement is not caused by anger, but by disgust. Because I hate each other so much, I don't want to be in the same space with each other, and I feel uncomfortable thinking that the other person exists in the world. Disgust always makes people want to move as far away from the other person as possible, so it is more common to take action to dissociate themselves and fly away.