How to Regulate Your Nervous System After Experiencing Trauma

Trauma doesn’t just live in the past; it often stays alive in the body. Long after the event is over, your nervous system can remain in survival mode, scanning for danger and reacting to reminders of what happened. This can leave you feeling anxious, disconnected, or overwhelmed.

The good news is that your body is capable of healing. By learning how trauma affects your nervous system and practicing regulation tools, you can begin to move from a state of survival to one of safety, balance, and presence. These practices are often used in trauma recovery techniques that help restore a sense of calm and safety.

Trauma Triggers and the Nervous System

One of the ways trauma shows up is through triggers.

Triggers are things like sounds, sights, smells, words, or situations that remind your body and mind of a past traumatic experience. They are highly individual. For one person, it might be a certain place. For another, it might be the smell of a particular cologne or even the color of a sweater.

For example, if someone who hurt you was wearing a red sweater, seeing a red sweater later on could send you into a spiral of flashbacks or intense fear, almost as if the trauma is happening all over again.

That’s because trauma gets stored in the body, brain, and nervous system. It’s your body’s way of keeping you alive. It remembers what felt dangerous so it can scan for threats in the future. While this survival instinct is protective, living in a constant state of hypervigilance (being hyper aware of your surroundings) and reactivity disconnects you from your true self and keeps you stuck in patterns that don’t align with who you want to be.

The Survival Responses: Fight, Flight, Freeze, and Fawn

When triggered, the nervous system shifts into fight, flight, freeze, or fawn responses:

Fight: feeling irritable, angry, defensive, or wanting to lash out.
Flight: feeling restless, anxious, panicky, or needing to escape.
Freeze: feeling numb, stuck, disconnected, or unable to respond.
Fawn: people-pleasing, over-accommodating, or abandoning your own needs to stay safe.

In these states, you might feel “flooded” with intense emotions, overstimulated by everything around you, or completely shut down. This is your sympathetic nervous system taking over. It’s the body’s alarm system designed to keep you alive.

But staying in this state long term takes a toll: exhaustion, digestive issues, poor sleep, depression, anxiety, and even chronic illness. That’s why learning to activate your parasympathetic nervous system—the part of your body responsible for rest, digestion, and recovery—is so important for healing.

Practical Ways to Regulate Your Nervous System

The question becomes: how do we shift from survival mode to a state of safety? The answer is by managing triggers and learning practices that regulate the nervous system.

Here are a few evidence-based ways to begin:

1. Grounding Practices

Bring your attention back to the present moment:

Try the 5-4-3-2-1 method (five things you see, four you feel, three you hear, two you smell, one you taste).
Press your feet into the ground, noticing the support beneath you.

2. Breathwork

Slow breathing tells your body you are safe. Try:

Inhale through your nose for 4 counts.
Hold for 4 counts.
Exhale slowly through your mouth for 6–8 counts.

If you notice yourself getting triggered and slipping into a survival response, remember—you always have your breath to come back to as an anchor.

I’ve personally found practicing guided breathing exercises on YouTube to be incredibly supportive in calming my nervous system. One of my favorites that I share with clients is “Breathe with Sandy.” There’s a 10-minute “regulate your nervous system” practice that never fails to leave me feeling calm, grounded, and centered. Sometimes, it even creates a natural, light “high,” so just notice how your body responds.

The more consistently you make breathwork a part of your daily routine, the more your body learns how to shift back into safety and ease. Breathwork is a powerful trauma recovery technique for activating the parasympathetic nervous system.

3. Movement

Trauma often gets stuck in the body. Move gently to release it:

Walk outdoors and notice your surroundings.
Try stretching or yoga.
Shake out your arms and legs to reset your energy.

Short bursts of movement can be a powerful way to ease anxiety in the moment—try 30 jumping jacks, a quick walk around the block, or even a few burpees to release built-up energy.

At the same time, weaving gentle, consistent movement into your daily routine helps regulate your nervous system more steadily over time. Yoga, stretching, or even mindful walking can gradually retrain your body to feel safer and more at ease.

The key is activating your parasympathetic nervous system—the “rest and restore” part of your body. Notice what brings you that natural “ahhhhhh” exhale, and lean into those practices regularly. These practices are also supported by insights from polyvagal theory, which explains how the vagus nerve helps regulate feelings of safety, connection, and calm in the body.

4. Soothing Touch

Self-touch can signal safety:

Place one hand on your heart and one on your stomach.
Wrap your arms around yourself in a gentle hug.

Link to a whole sheet on self-soothing skills: Download!

5. Connection

Safe relationships help regulate the nervous system:

Talk to a trusted friend or family member.
Spend time with a pet.
Work with a trauma-informed therapist who can guide your healing.

Have you ever noticed how much lighter you feel after a good venting session? Sharing what’s on your mind can be incredibly relieving. Just remember to check in with your loved ones first to make sure they have the emotional space to listen—it helps keep boundaries healthy on both sides.

And of course, having a therapist to process with can be especially valuable, since you’ll always have a safe, supportive space to share what’s on your heart.

Triggers can show up strongly in relationships too. If you’d like to learn how to navigate them with a partner, check out our guide: How to Deal with Trauma Triggers in a Relationship.

Moving From Survival to Safety

Regulating your nervous system isn’t about avoiding triggers altogether—it’s about learning how to respond to them in ways that bring you back into balance. Each time you practice, you’re teaching your body that safety exists here and now.

Healing takes time, patience, and often the support of others. But little by little, you can retrain your nervous system, reconnect with your true self, and create space for peace, clarity, and joy in your life. With consistent nervous system healing practices, it’s possible to feel more grounded and safe again.

If you’d like extra support on this journey, I offer trauma-informed therapy to help you gently regulate your nervous system and move toward healing. You’re welcome to book a session here whenever you’re ready.