Since Stephen Porges first proposed the Polyvagal Theory in 1994, its basic idea-that the level of safety we feel impacts our health and happiness-has radically shifted how researchers and clinicians approach trauma interventions and therapeutic interactions. Yet despite its wide acceptance, most of the writing on the topic has been obscured behind clinical texts and scientific jargon.

It can be incredibly frustrating when your body reacts to situations in ways that you can’t control. But what if you could harness the same mechanisms that cause fear and panic to instead summon peace and spaciousness? In Befriending Your Nervous System, clinician Deb Dana offers practical advice and exercises for engaging with your subconscious nervous system responses for greater wellness and resilience.

Ever since publication of The Polyvagal Theory in 2011, demand for information about this innovative perspective has been constant. Here Stephen W. Porges brings together his most important writings since the publication of that seminal work. At its heart, polyvagal theory is about safety. It provides an understanding that feeling safe is dependent on autonomic states, and that our cognitive evaluations of risk in the environment, including identifying potentially dangerous relationships, play a secondary role to our visceral reactions to people and places.

In Trauma and Memory, best-selling author Dr. Peter Levine (creator of the Somatic Experiencing approach) tackles one of the most difficult and controversial questions of PTSD/trauma therapy: Can we trust our memories? While some argue that traumatic memories are unreliable and not useful, others insist that we absolutely must rely on memory to make sense of past experience. Dr. Levine suggests that there are elements of truth in both camps.

Deb Dana is the foremost translator of polyvagal theory into clinical practice. Here, in her third book on this groundbreaking theory, she provides therapists with a grab-bag of polyvagal-informed exercises for their clients, to use both within and between sessions. These exercises offer readily understandable explanations of the ways the autonomic nervous system directs daily living.