Polyvagal Theory (PVT) provides a foundation for understanding the physiological basis of emotions and social connections. It emphasizes how the vagus nerve affects our capacity for emotional regulation and stress response. Therapy based on PVT uses interventions that enhance the body's sense of safety, fostering greater resilience and emotional stability. 

Techniques might include mindfulness, deep breathing, and social engagement exercises that stimulate the parasympathetic nervous system. PVT is particularly beneficial for clients dealing with trauma as it engages your body to restore a sense of calm and security. When compared to more traditional approaches like CBT or ACT, Polyvagal Theory is unique in its attention to bodily sensations as the biological underpinnings of emotional and psychological experiences. PVT directly engages the nervous system unlike the talking approach of ACT, CBT, and DBT.

This approach is a good choice for individuals experiencing physical symptoms as a result of their mental health struggles such as panic attacks or who have not responded well to other talk therapy approaches.