Harmony in Hormones

The Dance of Connection and Survival

Ever wondered why a warm conversation leaves you feeling thrilled, or why a sudden scare can send shivers down your spine? It revolves around the delicate hormonal interplay within us.

Let's unravel the dynamic interplay of hormones in three distinct states: the social engagement (ventral vagal) system, the sympathetic system, and the freeze system. I will explore the world of oxytocin, adrenaline, and cortisol as we explore how these hormones choreograph our experiences of connection and survival.

Social Engagement: The Ventral Vagal System:

When we're in a state of social connection and engagement, the star of the show is oxytocin – often referred to as the "love hormone" or "bonding hormone." This hormone is released during positive social interactions, creating a sense of warmth, trust, and connection. It's the hormone that deepens our emotional ties and fosters feelings of safety.

In this state, the ventral vagal nerve plays a leading role. Connected to the cranial nerves, it regulates facial expressions, vocal tone, and even the muscles of the middle ear. Activation of the ventral vagal system promotes a state of calm and connectedness, allowing us to engage with others in a relaxed and open manner.

Survival in Action: The Sympathetic System:

Now, imagine a scenario where you perceive a threat or face a challenge. Cue the sympathetic nervous system, the body's accelerator pedal. In this state, adrenaline takes centre stage. Released by the adrenal glands, adrenaline prepares the body for action – the heart races, breathing quickens, and energy surges. This is the classic fight-or-flight response, a survival mechanism sharpened by evolution to deal with immediate threats.

While the sympathetic system is crucial for mobilizing energy in the face of danger, it's a short-lived response designed for acute stressors. Prolonged activation of the sympathetic system can lead to chronic stress, impacting both physical and mental well-being.

The Stillness in Survival: The Freeze System:

When confronted with an overwhelming threat that seems invincible, the freeze response takes the stage. In this state, cortisol, often associated with stress, plays a leading role. The freeze response is marked by a release of cortisol, inducing a state of stillness or immobility. This response is an ancient survival strategy, where staying quiet and motionless might be the best chance of avoiding detection by a predator.

While the freeze response can be lifesaving in certain situations, chronic activation of this system can contribute to a range of physical and psychological issues, including anxiety and depression.

The Hormonal Symphony in Everyday Life:

In our daily interactions, these hormonal systems play a constant and dynamic role. Positive social engagements trigger the release of oxytocin, fostering connection and trust. Challenges or threats activate the sympathetic system, mobilizing energy for action. When faced with overwhelming stress, the freeze system steps in, employing cortisol to induce a state of stillness.

Understanding the hormonal interconnection within us sheds light on the intricate mechanisms that shape our experiences of connection and survival. From the embrace of oxytocin in moments of warmth to the adrenaline-fueled readiness of the sympathetic system and the calming stillness induced by cortisol in freeze mode, our hormonal responses are a proof to the complex interplay of biology and emotion. By recognizing and appreciating this hormonal play, we gain insights into our own reactions, fostering a deeper understanding of the physiological underpinnings of our social and survival instincts.

 

But what happens when the dial gets stuck on high alert?

Let’s explore the effects that prolonged exposure to these stress hormones can have on our mental and physical well-being.

The Sympathetic Overdrive: Thoughts and Mindset:

When the sympathetic nervous system is in overdrive, the mind becomes a battleground of racing thoughts. Constantly anticipating threats, the mind can struggle to find moments of peace or clarity. Chronic stress can lead to cognitive distortions, where negative thinking patterns take root, impacting self-perception and the interpretation of events.

Anxiety becomes a frequent companion as the mind remains hyper-vigilant, scanning the environment for potential dangers. The ability to focus on tasks may diminish, making it challenging to concentrate on the present moment.

Emotional Turbulence:

Prolonged activation of the sympathetic system can turn emotions into a tempest. While the initial surge of adrenaline might provide a burst of energy, chronic stress can lead to emotional exhaustion. Feelings of frustration, irritability, and even anger can become more prevalent as the body remains on high alert.

The freeze response, characterized by elevated cortisol levels, can contribute to a sense of emotional numbness or detachment. This emotional shutdown is a protective mechanism, but if it persists, it can hinder the ability to connect with and experience emotions fully.

Behavioural Patterns:

Living in a constant state of sympathetic arousal can reshape behaviour. The fight-or-flight response might result in an increased tendency to react impulsively, responding to situations with heightened aggression or defensiveness. Chronic stress can lead to changes in sleep patterns, appetite, and overall energy levels, affecting daily routines and productivity.

The freeze response, with its cortisol-driven stillness, might manifest in avoidance behaviours. There may be a reluctance to engage with challenges, take risks, or even participate in social interactions. This behavioural withdrawal is an attempt to minimize perceived threats but can result in isolation and a sense of stagnation.

Physical Toll:

The body, under constant sympathetic arousal and freeze response, pays a substantial price. Elevated levels of stress hormones can contribute to a range of physical issues, including muscle tension, headaches, digestive problems, and a compromised immune system. Over time, chronic stress is associated with an increased risk of cardiovascular diseases, metabolic disorders, and other health issues.

 

Living in a perpetual state of sympathetic and freeze hormones is like running a marathon without the finish line in sight. The toll on thoughts, emotions, and behaviour is profound. Recognizing the signs of chronic stress and addressing its root causes are crucial steps toward reclaiming balance and well-being.

 

References
Keeler, Jason R, Edward A Roth, Brittany L Neuser, John M Spitsbergen, Daniel J M Waters, and John-Mary Vianney, ‘The Neurochemistry and Social Flow of Singing: Bonding and Oxytocin’, Frontiers in Human Neuroscience, 9 (2015), 518–518
Lupien, S.J., F. Maheu, M. Tu, A. Fiocco, and T.E. Schramek, ‘The Effects of Stress and Stress Hormones on Human Cognition: Implications for the Field of Brain and Cognition’, Brain and Cognition, 65.3 (2007), 209–37
Manoli, Devanand S., and Jessica Tollkuhn, ‘Gene Regulatory Mechanisms Underlying Sex Differences in Brain Development and Psychiatric Disease’, Annals of the New York Academy of Sciences, 1420.1 (2018), 26–45
Schoenfeld, Timothy J., and Elizabeth Gould, ‘Stress, Stress Hormones, and Adult Neurogenesis’, Experimental Neurology, 233.1 (2012), 12–21
Vasiliadis, H.-M., H. Forget, and M. Préville, ‘The Association Between Self-Reported Daily Hassles and Cortisol Levels in Depression and Anxiety in Community Living Older Adults’, International Journal of Geriatric Psychiatry, 28.10 (2013), 991–97
Verhaak, Peter F.M., Monique J.W.M. Heijmans, Loe Peters, and Mieke Rijken, ‘Chronic Disease and Mental Disorder’, Social Science & Medicine (1982), 60.4 (2005), 789–97
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