What is differences between anxiety and arousal?

Anxiety refers to feelings of worry or unease, often irrational and excessive, while arousal refers to a state of heightened alertness or readiness. Anxiety is typically perceived as negative and can impair functioning, while arousal can be positive and help to improve performance in certain situations. Both can involve physical symptoms such as increased heart rate and sweating, but anxiety is characterized by negative thoughts and emotional distress, whereas arousal is typically associated with excitement and anticipation.