Which of the following is a typical non-pharmacological intervention for pain management?

Deep breathing exercises are a widely recognized non-pharmacological intervention for pain management. They can help to alleviate pain by promoting relaxation, reducing anxiety, and improving oxygenation. When a person practices deep breathing, it encourages a decrease in muscle tension and supports the body's natural pain-relieving mechanisms. Additionally, deep breathing can help in regulating the body's stress response, which is often heightened during painful experiences.

In contrast, the other options mentioned do not serve as effective methods for managing pain. Herbal remedies, though popular, can vary significantly in their effectiveness and may not be appropriately regulated for safety and efficacy. Increasing food intake does not have a direct impact on pain relief and could potentially lead to discomfort if it causes gastric distress. Reducing fluid intake can lead to dehydration and may exacerbate pain or discomfort, rather than alleviate it. Therefore, deep breathing exercises stand out as a practical, safe, and effective approach within the context of non-pharmacological pain management strategies.