Tag Archives: stress

Dr. M’s SPA Newsletter Volume 15 Issue 31 – Poly Vagal Theory, Stephen Porges, PhD

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I think that this is an important time to pause and relook at Polyvagal Theory before continuing with Beyond Behaviors.

Polyvagal Theory: Current Status, Clinical Applications, and Future Directions (Porges, S. 2025)

“Social behavior and the capacity to manage challenge are dependent on the neural regulation of physiological state.” S. Porges


When I dove into Stephen Porges’s 2025 review of the Polyvagal Theory (PVT), I felt like I’d stepped into a crossroads where neurobiology, clinical practice, trauma science, and human experience collide. This paper isn’t merely a summary of three decades of work (all of which I have read); it’s a spirited defense of a paradigm that’s been both celebrated (by me) and contested (by others). What follows is an honest appraisal of what the article teaches us, where it sparks real insight, and where it may fall short, especially through the lens of evidence-based medicine and developmental neurophysiology. (I also went deeper into his 2022 paper in Frontiers in Integrative Neuroscience for the biophysiology of the ANS)

At its heart, the article argues that the autonomic nervous system (ANS), through a set of hierarchically organized circuits centered on the vagus nerve, is not just a background player in stress and homeostasis, but a core regulator of social engagement, physiological flexibility, and behavior. Dr. Porges situates his theory as an alternative and expansion to classical views that treat sympathetic (fight/flight) and parasympathetic (rest/digest) branches as functional opposites. Instead, he proposes a three-component hierarchy: the ventral vagal complex (VVC) supporting social engagement, a mobilization circuit mediated by the sympathetic nervous system or fight or flight state, and a dorsal vagal circuit that facilitates shutdown or immobilization under extreme threat…..

Enjoy,
Dr. M

Dr. M’s SPA Newsletter Volume 14 Issue 48

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Holidays and Connection

The Christmas and winter holiday season is a unique time to sit back reflect on the past year. To behold the timeless beauty of life. The shared time offers us an opportunity to pause and connect with those who matter or should matter most in our lives. I love the bathroom plaque that says at the end of life it won’t matter what you owned or what you knew, but rather the impact you had in a child’s life. Fortunately, for us, the holidays bring a chance to foster authentic human connections. To actually sit in conspiracy together. These moments are more than just traditions, they are essential for our emotional, mental, and even physical health. In the hustle of modern existence, where schedules dominate and technology often mediates relationships, we are losing this skill set, especially for the younger generations, making it more important to stay focused now.

Let us define human connection: Human connection is the act or feeling of being seen, heard, cared for and valued by another person or group. It is a most primary need for humans starting in infancy when a child needs a mother’s touch and milk. It arises from the countless meaningful interactions that foster mutual understanding, trust, empathy, and shared emotional experiences that ultimately lead to a child’s feeling of safety. The critical time period to establish attachment and connection is the first 2 to 3 years of life. Plus a section of literature review and a recipe of the week.

Enjoy,

Dr. M

Dr. M’s SPA Newsletter Audiocast Volume 14 Issue 33

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Sleep Part IV

Continuing the sleep education from a few weeks ago.

Sleep is a most special event that we all need to continue to focus heavily on in order to live a healthy and long life. It may be the single most important event that we do daily.

Here are a few more quick hits on sleep from the Matthew Walker’s Book and other publications.

1) Aim for a minimum of 7 hours nightly to maintain adequate memory consolidation, immune health and emotional regulation. Young children and teens need 8-14 hours depending on age.

2) Do not eat close to bedtime. Stop eating three hours before you plan to go to sleep. Avoid rapidly digesting refined carbohydrates as they turn into energy quickly raising core temperature which makes it harder to fall asleep as we need our body temperature to drop 3 to 4 degrees F at night to fall asleep. Heavy protein meals at night are not a great idea. Eat the heavier proteins early (before 6 pm) if at all in the evening….plus a section on summer Covid surge.

Enjoy,

Dr. M

Dr. M’s SPA Newsletter Audiocast Volume 14 Issue 32

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Sleep Part III

Finally, the other elephant in the room related to sleep is STRESS. Stress alters the function of the hormone cortisol and can significantly alter night sleep function. There are three major chemicals that affect sleep: cortisol, adenosine and melatonin.

In normal conditions, adenosine rises during the day making you sleepy, cortisol hits its low point at night and melatonin rises as the sun goes down. This combination puts pressure on you to feel sleepy and want to go to bed. Unfortunately, modern life has made many of us feel stressed and sympathetically fired up which affects cortisol function. Instead of being at its nadir at night, the stress response causes cortisol to rise at inappropriate times disrupting sleep onset and maintenance. Couple this stress with facebook addiction and screen induced melatonin suppression and you have a recipe for insomnia and disrupted sleep. (Hanson et. al. 2010)….Plus, a section on cellphones and driver knowledge.

Enjoy,

Dr. M

Dr. M’s SPA Audiocast Newsletter Volume 14 Issue 28

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Klotho Part II

Last week we discussed Klotho as a protein that has pleotrophic effects in the body as it relates to cellular aging. This week let us focus specifically on the brain. What are the effects of klotho as it relates to cognition and function over time? Klotho has neuroprotective effects based on studies that show that better cognitive performance in translational models over time occur with the injections of klotho. Klotho is also shown to have neuroprotective effects if naturally elevated, i.e. individuals with host genetics that promote more klotho production over time without being taken or given.

The pivitol research occurred in 2015 in a mouse model of Alzheimers Disease (AD) where Dr. Dena Dubal and colleagues looked at two groups of intervention mice with and without higher levels of Klotho. and a literature review on micro plastics and screentime.

Enjoy,

Dr. M

Dr. M’s SPA Newsletter Audiocast Volume 14 Issue 13

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To Forgive
The act as defined as I see it – to release consciously another person from your negative feelings based on an event that was hurtful toward you from them whether it is perceived on your part or known by both parties.
What I find fascinating is that often the act of forgiveness may have to push past an unconscious threat injury in order to take root. This is to say that we can be harmed at a conscious and an unconscious level. The unconscious harm is understood at the vagal nerve level which is a primitive emotional safety response state that all mammals have that developed a long time ago. This is the essence of polyvagal theory which states that when humans feel safe, their nervous system supports the homeostatic functions of health, growth and restoration, while simultaneously become accessible to others without feeling or expressing threat and vulnerability. (Porges S. 2022) Thus, the opposite exists, when humans are threatened, their nervous system supports a break in homeostasis that can be short lived or long persistent based on the severity and chronicity of the harm. This break can lead to persistent mental and physical health challenges….. and a section on sleep followed by the recipe of the week.
Enjoy,
Dr. M

Dr. M’s SPA Newsletter Audiocast Volume 14 Issue 7

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This weeks podcast turned out to be so much more than expected when I first heard about Dr. David Clarke. His work transcends much of what I see in clinic and has given a name to the reality of puzzling chronic illness. From the PPDA website: Psychophysiologic disorders (PPD) are stress-related, brain-generated pain or illness. Even people who handle stress well can have PPD. This occurs when the stress is not fully recognized. The resulting symptoms are completely real. That is why the term we use is a blend of Psychology (the processes of the mind) and Physiology (the processes of the body)…..and a discussion on oral allergy syndrome.
Enjoy,
Dr. M

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