How Trauma Impacts the Nervous System: Survival, Safety, and Regulation

The memory of trauma is often written into the nervous system. When we experience overwhelming or threatening events, our body shifts into protective survival responses designed to keep us safe. For some individuals, especially those who develop Post-Traumatic Stress Disorder (PTSD), these survival responses can remain activated long after the danger has passed. Others may notice patterns of anxiety, hypervigilance, emotional reactivity, or shutdown without fully understanding why.

This video offers general psychoeducation about how stress and trauma affect the nervous system. You’ll learn how your body’s protective systems work, why certain responses make biological sense, and how understanding these patterns can support greater self-compassion and resilience.

https://video.wixstatic.com/video/76d51d_c6e078093e8b46a4979c2c0379c3788b/1080p/mp4/file.mp4

This content is for educational purposes only and does not replace individualized mental health treatment. If you are experiencing ongoing trauma-related symptoms, I encourage you to seek support from a licensed mental health professional.

About the Author

Lena Harrison, LPC-IT, is a Wisconsin-based therapist specializing in trauma-informed care. She provides individual and group therapy for women navigating stress, trauma, mood concerns, addictions, and insomnia.

Learn about Trauma Therapy