How do emotions arise? What are their key elements?

Emotions arise from a combination of physiological arousal, cognitive appraisal, and behavioral expression. The key elements of emotions are:

1. Physiological arousal: This is the physical response to a stimulus, such as increased heart rate, sweating, and changes in breathing.

2. Cognitive appraisal: This is the mental process of interpreting the stimulus and determining its significance.

3. Behavioral expression: This is the outward expression of the emotion, such as facial expressions, body language, and vocalizations.