Therapy has evolved significantly over the past few decades. One of the most important developments in recent years is polyvagal theory — a framework that’s changing how therapists understand and treat anxiety, trauma, emotional regulation, and many other mental health challenges.
If you’ve ever wondered why you can’t just “think your way out” of anxiety, or why knowing something logically doesn’t stop you from feeling anxious or panicked, polyvagal theory offers answers. It explains what’s happening in your body when you experience these struggles, and more importantly, it provides practical tools for addressing them.
What Is Polyvagal Theory
Polyvagal theory was developed by Dr. Stephen Porges, a neuroscientist who studied the vagus nerve and its role in regulating our nervous system. The vagus nerve is the longest nerve in your body, running from your brainstem down through your chest and abdomen, connecting your brain to your heart, lungs, digestive system, and other organs.
The theory explains how your nervous system responds to safety and threat, and how these responses affect everything from your emotions to your ability to connect with others. Your nervous system is constantly scanning your environment for cues of safety or danger in a process called neuroception. This happens automatically, below your conscious awareness.
Based on what your nervous system detects, it shifts between three different states. Each state serves a specific survival function and creates distinct physical and emotional experiences.
The Three States of Your Nervous System
Your nervous system operates in three states that correspond to different levels of perceived safety or threat.
The ventral vagal state is your social engagement system. When you’re in this state, you feel safe, connected, and able to interact with others calmly. Your heart rate is regulated, your breathing is easy, and you can think clearly. You’re open to connection, learning, and growth. This is the state where healing and meaningful change can happen.
The sympathetic state is your fight-or-flight response. When your nervous system detects threat, it activates this state to mobilize you for action. Your heart races, your breathing quickens, your muscles tense. You feel anxious, agitated, or angry. This state helped our ancestors survive physical dangers, and it still activates today — even when the “threat” is a difficult conversation, a crowded room, or an overwhelming to-do list.
The dorsal vagal state is your shutdown response. When threat feels overwhelming and escape seems impossible, your nervous system shifts into this immobilized state. You might feel numb, disconnected, foggy, or frozen. Your energy drops. You withdraw from people and activities. This is the state associated with depression, dissociation, and hopelessness.
Your nervous system moves between these states throughout the day based on what it perceives in your environment and in your body. The key word is perceives — your nervous system can detect threat even when you’re objectively safe.
Why Your Nervous System Sometimes Gets It Wrong
Neuroception — the process by which your nervous system scans for safety and danger — happens automatically. You don’t consciously decide to feel anxious or shut down. Your nervous system makes that determination based on cues it picks up from your environment, other people, and your own body.
Sometimes neuroception is accurate. If you’re walking alone at night and someone starts following you, your sympathetic nervous system activates appropriately. If you’re spending time with people you trust in a safe environment, your ventral vagal system engages.
But sometimes neuroception picks up on cues that trigger defensive responses even when there’s no actual threat. This happens for several reasons. Past trauma can sensitize your nervous system to perceive danger where none exists. If you were hurt in a particular type of situation, your nervous system learns to detect similar situations as threatening — even years later, even when the current situation is completely safe.
Chronic stress keeps your nervous system in a heightened state of activation. When you’re constantly under pressure, your nervous system stays vigilant, scanning for threats. Small stressors that wouldn’t normally trigger a strong response can push you into fight-or-flight because your system is already on high alert.
Early attachment experiences shape how your nervous system responds to relationships. If your caregivers were inconsistent, dismissive, or frightening, your nervous system learned that connection isn’t safe. As an adult, intimacy might trigger defensive responses even when you’re with someone trustworthy.
Your current body state influences neuroception. If you’re tired, hungry, in pain, or physically unwell, your nervous system is more likely to perceive threat. This is why everything feels harder when you haven’t slept or eaten well.
What This Means for Anxiety and Trauma
Anxiety makes more sense through the lens of polyvagal theory. Anxiety isn’t just worried thoughts. It’s your sympathetic nervous system activating to prepare you for threat. Your heart races, your breathing gets shallow, your muscles tense — all signs that your body is in fight-or-flight mode.
You can’t simply think your way out of this state because the activation is happening at a physiological level. Telling yourself “there’s nothing to worry about” doesn’t signal safety to a nervous system that’s already detected threat. The nervous system has to feel safe before it can calm down.
Panic attacks are extreme sympathetic activation. Your nervous system perceives such intense threat that it floods your body with stress hormones, creating physical symptoms that feel terrifying — racing heart, difficulty breathing, chest pain, dizziness. These symptoms aren’t dangerous, but they’re very real. They’re your nervous system trying to protect you from a threat it believes exists.
PTSD involves a nervous system that’s stuck in defensive states. Trauma teaches your nervous system that the world isn’t safe. Even after the traumatic event ends, your nervous system continues to scan for danger and activate defensive responses. Flashbacks, hypervigilance, emotional numbness — these are all signs of a nervous system that hasn’t returned to a baseline state of safety.
Depression often involves dorsal vagal shutdown. When stress or trauma becomes overwhelming, your nervous system shuts down to protect you. Everything feels heavy, flat, and meaningless. You withdraw from activities and relationships. This isn’t laziness or lack of willpower. It’s a nervous system in shutdown mode.
How Polyvagal-Informed Therapy Works
Therapy informed by polyvagal theory focuses on helping your nervous system feel safe enough to shift out of defensive states and access the ventral vagal state where connection, learning, and healing are possible.
This involves working with your body, not just your thoughts. Therapists might help you notice where you feel sensations in your body — tension, tightness, warmth, heaviness, butterflies. These sensations are information about what state your nervous system is in. Learning to recognize them helps you understand what you’re experiencing and respond appropriately.
Breath work can influence your nervous system state. Slow, deep breathing activates the vagus nerve and signals safety to your nervous system. This isn’t the same as taking deep breaths when you’re panicking and being told to “just calm down.” It’s a deliberate practice of using breath to shift your physiological state.
Movement matters because your nervous system responds to what your body is doing. The way you hold your body — whether you’re collapsed and folded in on yourself or upright and open — sends signals to your nervous system about safety or threat. Small adjustments in posture can influence your emotional state.
Social connection is regulating when it feels safe. Being with someone who is calm and present can help your nervous system shift toward regulation. This is why the therapeutic relationship itself is so important. A therapist who creates safety allows your nervous system to practice being in ventral vagal state, which then transfers to other relationships.
Therapists also help you identify what cues trigger defensive responses and what cues signal safety to your nervous system. Once you understand your patterns, you can begin to intentionally create conditions that support regulation.
Polyvagal Theory and Other Therapeutic Approaches
Polyvagal-informed therapy doesn’t replace other treatment approaches. It complements them. Many therapists integrate polyvagal principles into established modalities like CBT, DBT, and EMDR.
For example, cognitive work becomes more effective when your nervous system is regulated. It’s much easier to challenge anxious thoughts or develop coping skills when you’re not in a highly activated state. Polyvagal-informed therapists might help you regulate your nervous system first, then work on cognitive or behavioral changes.
Trauma-informed care naturally incorporates polyvagal principles because it recognizes that safety is foundational to healing. Before processing traumatic memories or challenging difficult patterns, your nervous system needs to feel safe enough to engage in that work.
Couples therapy benefits from understanding how nervous system states affect communication. When one or both partners are in defensive states, productive conversation becomes nearly impossible. Helping couples recognize when they’re dysregulated and learn to co-regulate changes the entire dynamic of their interactions.
Work with children and teens makes more sense through a polyvagal lens. Behavioral problems often reflect nervous system dysregulation rather than willful defiance. When a child is in fight-or-flight or shutdown, they can’t access the parts of their brain that regulate behavior and make good decisions. Helping them feel safe is the first step toward behavior change.
What You Can Do With This Understanding
Even without formal therapy, understanding polyvagal theory can help you make sense of your own experiences and respond to them differently.
Notice what state your nervous system is in.
- Are you activated and anxious?
- Shut down and numb?
- Calm and connected?
Simply recognizing your state helps you understand what you need in that moment.
Pay attention to what helps you feel safe. This is different for everyone. Some people find safety in quiet, solitary activities. Others need movement or social connection. Some find nature regulating. Others need structure and routine. Once you know what works for you, you can intentionally create those conditions when you’re dysregulated.
Be patient with your nervous system. It’s not being difficult or irrational. It’s trying to keep you safe based on the information it has. You can’t force yourself out of a defensive state through willpower, but you can gradually teach your nervous system that it’s safe to relax.
Build relationships that support regulation. Being around people who are calm, present, and safe helps your nervous system practice ventral vagal states. Over time, your nervous system learns that connection can be regulating rather than threatening.
Addressing Anxiety with Expert Therapy
If you’re struggling with anxiety, depression, trauma, or other mental health challenges, working with a therapist who understands polyvagal theory can provide tools and support that address the physiological foundations of these struggles.
The therapists at Long Island Counseling Services integrate polyvagal principles into their work with individuals, couples, and families. We recognize that effective treatment requires addressing both mind and body — understanding your thoughts and patterns while also working with your nervous system to create the safety necessary for healing.
We serve clients throughout Long Island from our offices in East Meadow, Melville, Huntington, Rockville Centre, and Jericho. We also offer remote therapy throughout New York State for those who prefer virtual sessions.
Contact Long Island Counseling Services at (516) 882-4544 for our East Meadow, Rockville Centre, and Jericho locations, or (631) 380-3299 for our Melville and Huntington offices. We’re here to help you understand what’s happening in your nervous system and develop the tools to support regulation and healing.