Emotion is a general term for various subjective cognitive experiences. It is a psychological and physiological state resulting from the synthesis of multiple feelings, thoughts and behaviors. The most common, popular emotions are joy, anger, sorrow, surprise, fear, and love, etc. There are also some delicate and subtle emotions such as jealousy, shame, and proud. Emotion often interacts with mood, personality, temper, and purpose, and is also affected by hormones and neurotransmitters. Will motivate people to act. Even some emotion-induced behaviors do not seem to be thought, but in fact awareness and thinking are an important part of generating emotions. Emotions are not only a variety of internal feelings, we can also speculate on a person’s emotions through his external behavior. An imaginary question on page 148 fits what I said:

Imagine the following situation. you are about to sit an exam and you are feeling very nervous. your mouth is dry, you have a sinking feeling in the pit of your stomach, the palms of your hands are sweaty, and you want to go to the washroom. Now remove each of thesephysical symptoms one by one. What is left of your exam nervous?

If I only observe this person, I can see that his mouth is very dry, his stomach is sinking, his palms are sweating, and he want to go to the washroom to see that this person is very nervous. Because in response to emergency stress, the body’s sympathetic nerves are activated, creating a “fight or flight response.” This reaction can cause a variety of changes in the body, such as faster breathing, muscle tension, reduced digestive system movements, and so on. At the same time, this response may cause stimulation of the large intestine; including increased movement of the large intestine, causing us to want to run to the washroom.

Another thing that interests me is the power of emotions, which refers to our strong emotions about a thing. For example, scientists have a strong feeling for their cause. The famous scientist Thomas Edison once said:

Genius is one percent inspiration and ninety-nine percent perspiration.

After 13 months of hard work, he tried more than 6,000 materials and tried more than 7,000 times before finally lighting the world’s first electric lamp. What caused him to persist for so long? It is his passion for science. This emotion can empower us and allow us to persist in doing what we like. No one can easily get the Nobel Prize, and the effort behind them is beyond our imagination. It is their passion, this emotion that keeps them going.