Which of the following is an appropriate usage of beta-blockers in anxiety treatment?

Beta-blockers are primarily used to manage the physical symptoms of anxiety, particularly those associated with performance-related fears, such as stage fright. These medications work by blocking the action of adrenaline on beta-adrenergic receptors, which helps to reduce symptoms like rapid heartbeat, shaking, and sweating that often occur in stressful situations, making them highly effective for individuals who experience acute anxiety in specific contexts, such as public speaking or performing.

In contrast, using beta-blockers for sleeping disorders is not appropriate since they do not address the underlying issues related to sleep and may even disrupt sleep patterns. Similarly, while they may provide some relief for performance anxiety, they are not suitable for long-term anxiety management as they do not target the psychological aspects of chronic anxiety disorders. As for severe depression, beta-blockers are not indicated, as depression usually requires treatments like antidepressants or psychotherapy rather than medications that target cardiovascular symptoms. By focusing on the acute physical symptoms manifested during anxiety-provoking situations, beta-blockers serve a specific and beneficial purpose in treating symptoms like those associated with stage fright.