Context: Emotions are complex. According to some theories, they are a state of feeling that results in physical and psychological changes that influence our behavior. The physiology of emotion is closely linked to arousal of the nervous system with various states and strengths of arousal relating, apparently, to particular emotions. Emotion is also linked to behavioral tendency. Extroverted people are more likely to be social and express their emotions, while introverted people are more likely to be more socially withdrawn and conceal their emotions. Emotion is often the driving force behind motivation, positive or negative. Definition has been described as is a "positive or negative experience that is associated with a particular pattern of physiological activity." According to other theories, emotions are not causal forces but simply syndromes of components, which might include motivation, feeling, behavior, and physiological changes, but no one of these components is the emotion. Nor is the emotion an entity that causes these components

Question: What system of the body is related to emotion's physiology?
Answer: nervous

Question: What sorts of people are more likely to be emotionally expressive?
Answer: Extroverted

Question: What type of people hide their emotions?
Answer: introverted

Question: What is emotion frequently responsible for driving?
Answer: motivation

Question: Along with physical changes, what sort of changes do emotions sometimes cause?
Answer: psychological

Question:  What system of the body is not related to emotion's physiology?
Answer: Unanswerable

Question:  What sorts of people are less likely to be emotionally expressive?
Answer: Unanswerable

Question:  What type of people show their emotions?
Answer: Unanswerable

Question:  What is emotion infrequently responsible for driving?
Answer: Unanswerable

Question: Along with physical changes, what sort of changes do emotions never cause?
Answer: Unanswerable