What therapeutic effect do beta-blockers provide for patients with anxiety?

Beta-blockers are primarily used to manage physical symptoms associated with anxiety, particularly in situations where individuals experience heightened anxiety responses, such as public speaking or performance anxiety. These medications work by blocking the effects of norepinephrine and epinephrine, neurotransmitters involved in the body's "fight or flight" response.

As a result, beta-blockers can significantly reduce physiological symptoms like tremors, palpitations, and increased heart rate, which are often experienced during anxiety episodes. This calming effect on the body's physical responses can help individuals feel more at ease in anxiety-provoking situations, making them an effective part of the treatment plan for specific anxiety-related scenarios.

The other choices do not accurately reflect the role of beta-blockers in anxiety management. They do not enhance alertness or energy, eliminate anxious thoughts, or enhance sleep quality, but rather focus on mitigating the body's physical symptoms that accompany anxiety.