Which of the following is a common physical symptom of anxiety?

Rapid heartbeat is a well-recognized physical symptom of anxiety, often due to the body’s response to stress or perceived threats. When a person experiences anxiety, the sympathetic nervous system is activated as part of the "fight or flight" response. This leads to several physiological changes, including increased heart rate, which prepares the body to react quickly to danger.

Anxiety can cause various other physical symptoms as well; however, rapid heartbeat is particularly notable because it's a direct response to anxiety. It can also be accompanied by other symptoms such as sweating, trembling, or shortness of breath. Understanding this helps individuals identify and manage their anxiety symptoms more effectively.