Safety Comes First. The Biology of Co-Regulation
Author: Lynda Chebbihi
Photo: An image of a regulated and calm baby through a warm hand touch with the caregiver.
Safety is not a preference. It is a biological requirement to function in our daily lives.
The nervous system scans the environment for risk without conscious awareness. This process in known as neuroception. When safety is detected, the body shifts into a regulated state. In this state, you can engage socially, have a clear thinking and feel emotionally happy.
Without safety, however, these functions are reduced. The nervous system shifts into defence mode. This includes fight, flight, or freeze and shutdown. These responses occur automatically, outside our awareness, and increase our vulnerability to anxiety, depression and trauma-related symptoms.
When the system remains in defence for long periods, without feeling safe again, enduring ongoing stress, the impact extends beyond mood and behaviour. Chronic dysregulation affects multiple systems in the body. For examples of observed effects include:
Reduced executive functioning, including planning and decision-making
Impaired social engagement and difficulty reading or misinterpreting cues
Disruption of endocrine function, including stress hormone imbalance
Dysregulated immune system and increased inflammation
Increased risks of chronic conditions such as fibromyalgia
Co-regulation plays a central role through safe relationships. We regulate each other through a calm and soothing voice, a soft facial expression, and actively listening and responding accurately and empathically to help calm the nervous system.
In therapy and leadership, safety is the starting point. Without it, insight does not integrate, learning does not hold, and behaviour does not shift.
Practical steps to support safety and co-regulation
Reduce sensory overload in your environment, including noise and interruptions
Use tone of voice and pacing to signal calm and predictability
Maintain consistent structure in sessions or meetings
Validate physiological responses before addressing behaviour
Build relational trust through reliability and presence
When safety is present, the nervous system shifts and the body moves towards regulation: Social engagement returns, thinking becomes clearer, and learning becomes easier.
Trust your process.
Bibliography
Porges, S.W. (2017) The pocket guide to the polyvagal theory: the transformative power of feeling safe. First edition. New York: W. W Norton & Company (The Norton series on interpersonal neurobiology).
Siegel, D.J., Schore, A.N. and Cozolino, L.J. (eds) (2021) Interpersonal neurobiology and clinical practice. New York: W.W. Norton & Company (The Norton series on interpersonal neurobiology).
