What is a common symptom of mild to moderate anxiety?

Mild to moderate anxiety commonly manifests through physiological symptoms, one of which is a rapid heart rate. This symptom occurs due to the body activating its fight-or-flight response, releasing stress hormones like adrenaline. As a result, the heart beats faster in preparation for potential danger, even when there may not be a direct threat present. This physical response can be accompanied by other symptoms such as restlessness, sweating, or feelings of tension.

In contrast, the other options do not accurately describe symptoms associated with mild to moderate anxiety. Extreme confidence typically represents the absence of anxiety. Exaggerated laughter is often a sign of nervousness or social discomfort, but it does not directly correlate with anxiety levels. Complete detachment from situations, or dissociation, is more severe and can indicate a different mental health issue rather than mild to moderate anxiety.