History of Glimmers
The concept of glimmer is part of Polyvagal theory. Coined by behavioral neuroscientist Stephen Porges and introduced in 1995, the theory describes how our autonomic nervous system (which controls involuntary actions like breathing) is searching for and reading cues to determine if they are dangerous. This process is called neuroception, and the vagus nerve, which regulates organ functions, is responsible for it. The term glimmer, however, was introduced in 2018 in the book The Polyvagal Theory in Therapy: Engaging the Rhythm of Regulation by licensed clinical social worker Deb Dana. It was popularized by a viral TikTok video in February 2022 by psychologist Dr. Justine Grosso, in a video that has nearly 100,000 likes.
Some Common Glimmers
If you’re still having trouble identifying what your own glimmers are, here are some common ones:
Feeling the warmth of the sunSensing the cool, salty ocean air The smell of cut grassSeeing a rainbowSunlight sparkling on water Smelling lavender or some other relaxing scent Petting a dog or catBeing in natureA stranger smiling at you in publicThe perfect cup of coffee
Understanding Triggers and Glimmers
Let’s take a look at what causes a trigger and what leads to a glimmmer.
When You’re Triggered
When the brain is triggered, it associates past traumatic events as if they’re happening right now, leading to the brain and body being on high alert. Symptoms like rapid heartbeat might occur within the body as the flight-or-fight response occurs. This response helps the body prepare for physical danger—helpful when you’re being chased by a tiger, less helpful when you’re being chased by your own memories. When you’re in that state, your sympathetic nervous system, which regulates the body’s response to a stressful situation, is activated, increasing the heart rate, and blood pressure, and pumping extra adrenaline to you to prepare you for danger. If this system is activated too often, or for too long, it can lead to health problems like chronic high blood pressure and insomnia.
When You Feel a Glimmer
The goal is to get to the “top” of the ladder—the ventral vagal state, which is connected with social engagement and safety. This activates the parasympathetic nervous system (also known as rest-and-digest) and puts the body in homeostasis. More time in the parasympathetic nervous system-activated state reduces your risk of disease.
How Glimmers Work
The term “glimmer” was popularized by Deb Dana, LCSW. Triggers are cues—accurate or not—that move the body into those fight-or-flight or freeze states. Glimmers are also cues—but they are cues that move the body into that feeling of safety and connection and into the ventral vagal state. While much of the activity on the Polyvagal ladder is involuntary, it is possible to regulate your place on the ladder. For example, something like breathing deeply can move you from fight or flight into the ventral vagal state and begin to down-regulate you. However, if you are in the dorsal (frozen) state, you need to first be moved into fight-or-flight before moving into the ventral vagal state.
How to Find More Glimmers
You can probably identify triggers in your life relatively quickly, but glimmers might be harder for you to access. It can be helpful to practice mindfulness or some kind of grounding activity before you attempt to discover your glimmers. Just as triggers can be both internal and external—from a thought of a traumatic situation that spontaneously comes up to a song that triggers intense feelings associated with a situation—so can glimmers. In fact, one person’s trigger might be another person’s glimmer.
How to Identify Your Glimmers
It can be helpful to keep track of your glimmers, just as you might keep track of triggers or other negative thoughts. You can do this in a journal or in a notes app on your phone. If you need help beginning to identify them, try these exercises below:
