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The Vagus Nerve: Not All Who Wander are Lost

Erica Nelson, MSPH, NBC-HWC

Practical Strategies for Managing Anxiety and Improving Digestion

Who’s the Boss?

They say the mind is a wonderful servant but a terrible master. Are you in charge of your mind and body? Or do you feel like you are at the mercy of your thoughts and feelings (physical and emotional)? This article shares cost-free and drug-free practical strategies to take back control of your physical and emotional feelings and make your mind your servant.

Your nervous system is complicated but you do not need to know all of the details to have a significant impact on its function. In this article you will find a very simple description of how one specific nerve, the Vagus, connects your physical and emotional feelings. You will also learn practical things you can do to reduce anxiety, improve digestion and overall wellbeing.

A (Very) Brief Neuroanatomy Lesson

Starting from the top, the brain branches out from your skull through 12 cranial nerves (and their branches) known as the peripheral nervous system.

Starting from the ‘bottom’ the gastrointestinal ‘mind’ is called the enteric nervous system (ENS.) The ENS has more nerve cells than the rest of the entire nervous system combined (more than 100 million!) and is capable of functioning independently of the rest of the nervous system.

The Vagus nerve is one of the 12 cranial nerves. It connects your brain to your digestive system and vice versa. It sends and receives both motor (movement) and sensory (feeling) signals. Beyond the digestive system, it touches nearly every major organ and plays a role in heart rate, respiration, facial expression, inflammation, sweating, reproduction and more.
Photo courtesy:
www.drarielleschwartz.com

The word ‘Vagus’ comes from the Latin for ‘wander’ but, as Tolkien wisely said, ‘Not all who wander are lost.’ This nerve, and its branches serve as the information super highway in your body and provide the early warning system for threats, internal and external.

Most of these functions are reflexes that happen without you thinking about them to keep you alive. Can you imagine if you had to decide to shunt blood supply from your stomach to your heart and lungs to run from danger? But sometimes the reflexes are not actually helpful in the moment and we are left feeling like our stomachs have minds of their own – because they kind of do. But when we know what the reflexes respond to, we can take steps to trigger a more desirable response.


Toning the Vagus for Stress Resilience

Have you ever felt your mouth go bone dry just as you are about to begin a presentation or performance? Or worse, maybe you feel like you are going to throw up? Or need to go to the bathroom RIGHT NOW. This is your reflexive response to stop bodily secretions and smooth muscle contractions in your GI tract so you can spend your resources elsewhere.

When you perceive a threat, your brain and body make preparations to respond and additional resources – oxygen, fluids, etc. – are diverted from digestion and reproduction until you are physically and psychologically safe again. Your heart rate, blood pressure and breathing increase, your pupils dilate, your mouth may go dry, your muscles may begin to tremble all of these are signs of activation of your sympathetic nervous system.

It is the job of the parasympathetic nervous system, including the Vagus nerve, to restore resources to ‘rest and digest’ once the threat (perceived or real) is passed. Depending on the duration and intensity of the threat, it may take 20 minutes or 20 years to return to a healthy resting state. When left unattended, chronic stress or PTSD can have long-term effects on your physical, cognitive and emotional health.

Techniques to Build ‘Stress Resillience’ and Facilitate the Job of the Vagus Nerve

Daily Habits to Support Stress Resilience:

  • Cat/Cow stretching with a Lion’s Roar

This exercise lengthens and contracts the Vagus nerve to activate it. Get on your hands and knees on the floor. Begin with a neutral spine and then press down through your hands and knees to arch your back upwards like a cat. Inhale while doing this. Then drop your belly down towards the floor and lift your breastbone forward and up. Exhale loudly while you do this, sticking your tongue out and even roaring like a lion.

  • Laugh

Laughter really is one of the best medicines. Real laughter is best but even fake laughter will engage the Vagus nerve through contraction of the diaphragm.

  • Hugs

A warm embrace, ideally 20 seconds or longer, will stimulate the part of the Vagus nerve that runs down your back and can trigger the release of a hormone called oxytocin, known as the feel-good hormone.

  • Singing, humming, chanting, gargling

The Vagus nerve is connected to your vocal cords and the muscles at the back of your throat. All of these activities activate the muscles around the nerve and can stimulate it. Choose one or more and find time for it each day.

In-the-Moment Strategies to Get Back to Rest and Digest:

  • 4-7-8 breathing

Place the tip of your tongue against the ridge of tissue just behind your upper front teeth, and keep it there through the entire exercise. Exhale completely through your mouth, making a whoosh sound. Close your mouth and inhale quietly through your nose to a mental count of four. Hold your breath for a count of seven. Exhale completely through your mouth, making a whoosh sound to a count of eight. This is one breath. Now inhale again and repeat the cycle three more times for a total of four breaths.

  • Go outside for a walk

This works for a couple of reasons. First, when you are walking, your eyes naturally move side-to-side and trigger a response in your brain that distracts it from threat. Second, you are using up some of the ‘energy hormones’ that were dumped into your system to respond to the threat and may be making you feel ‘jittery.’

  • Self-massage

Stroke your neck from your ear to your clavicle 10 times on each side. Again, your Vagus nerve is connected to these muscles. Moderately intense massage to the area will stimulate the nerve and help to restore a resting state.
 
You do not have to be at the beck and call of your body’s reflexes. Choose one or two of the strategies above and integrate them into your day to improve your ability to respond the way you want to – instead of simply reacting – the next time you are faced with a stressful situation.
 

Call our office and schedule an appointment with one of our health coaches to learn more healthy strategies to reduce and respond to physical, emotional and cognitive stress. 

Your Partner in Health!
Erica Nelson, MSPH, NBC-HWC 

TOXINS… Mercury, phthalates, and lead, oh my!

Frances T Meredith, MD

We are swimming in toxins every day from the water we drink, the air we breathe, the food we eat, and the products we use on our bodies, and in our homes and yards. We have all heard the story of Flint Michigan. But lead exposure is just the very tip of the iceberg of our daily toxin exposure.

Toxins now are well established to impair the ability of our mitochondria, the batteries in every cell, to create energy. That has downstream effects in every organ system. Many studies clearly establish that toxins underlie many chronic diseases including neurogenerative disease (think Parkinson’s, Alzheimer’s, ALS), autoimmunity, hormone disruption (think thyroid and endometriosis) and > 50% cases of gout. Did you know toxins often lurk beneath depression, anxiety, and ADHD?

There are simple things we can all do to both decrease our exposure and assist our body in moving out toxins. The first step is a good look at where the toxins are coming from. Stop the inflow! Environmental toxins include chemicals, metals, mold, particulate matter in the air, ozone, radiation, and EMF. And don’t forget those ever-present psychic toxins that have escalated in the past few years: toxic relationships, social media, and news. Toxins also can come from within, in the byproducts created by intestinal bacteria, our own hormone processing, and our own natural detox pathways. Then we often “choose our poisons”, drinking that evening wine to wind down, vape, diets that are too acidic, or choosing non pure forms of hemp, and often using them for the wrong reasons.   

I’d like to take a bit of time to dig into environmental toxins. First, metals. We all know about lead exposure, but did you know that our city water has arsenic? Kale is often filled with thallium? Do you have mercury fillings? If so, are they stable or are they leaking low level mercury into your body every day?

Next, a bit more focus on chemicals. Many chemicals are known to be “gender benders”, disrupting our hormone pathways, plugging into the estrogen receptors and not letting go, decreasing fertility in women, sperm counts in men. The big offenders on the “gender bender” list are phthalates, bisphenols, parabens, triclosan in antibacterial soap, and PCBs. Below is a list of chemicals to which we are frequently exposed, creating buildup over time.

  • Polycyclic aromatic hydrocarbons (PAHs): burning of tobacco, oil, coal, gas, garbage
  • Plastics (phthalates): from plastics and from anything with “fragrance” or “parfum” not labelled as organic (think Bath and Body Works); microplastics are also in our water
  • Phenols, particularly bisphenol, (BPA); found in hard plastics, sippy cups, linings of beverage/food containers, transferring through the skin of your hands on your Publix receipt.
  • Parabens: in many cosmetics, creams, medications etc
  • Organochloride pesticides: DDT is still  in soil from use 1940s-1960s
  • Organophosphate pesticides: RoundUp etc
  • Polychlorinated dibenzo-dioxin and furan (dioxins): exposed in high fat dairy/meat/FISH
  • Polychlorinated biphenyls (PCBs): illegal 1979, but we are still exposed in high fat dairy/meat/FISH
  • Polybrominated diphenyl ethers (PBDEs): flame retardants, FATTY FISH     
  • Polyflourinated compounded (PFCs): stain, grease, water resistant products

So how can we help our body deal with this onslaught of chemicals? First, stop the inflow:

  • Clean Air: Create a “scent free zone” in your home. Avoid living near highways if possible. Add plants that absorb toxins (ficus, mums, gerber daisies). Leave shoes at the door. Just 2 days with clean air improves health
  • Clean Water: Quality water filtration is essential, such as Aquasana, or Zero Water
  • Clean Food: Organic where possible using Clean 15 Dirty Dozen list; grow your own food where possible; wash chemically grown food in acidic solution such as vinegar, no plastic for food storage, no perflouride based nonstick pans
  • Clean up household, lawn, personal hygiene products using www.ewg.org and the Think Dirty Shop Clean app to guide product choice. No RoundUp.
  • Clean frequently, especially with crawling children in the home.

Then we can get the body ready to move toxins out. This will take guidance from your Functional Medicine provider and will include essential nutrients, balancing the intestinal bacterial microbiome, an “oil change” to remove and replace damaged oils in cellular membranes where toxins reside, adding binders to catch and remove toxins as they are excreted by liver/gallbladder into the intestinal tract. The “prep” also includes many pieces to get liver and kidneys ready. Then, and only then, can we proceed to escort the toxins out without creating further damage. “Detox” without this prep is very dangerous.

Once we move into the process of escorting out the toxins, we choose supplements, foods, and sometimes medications to grab and move toxins out of tissues. At the same time, we use many modalities including lymphatic massage, infrared sauna, castor oil packs, and CranioSacral therapy to support the lymphatic system whose job it is to move those toxins through and out.

Unfortunately, we no longer live in an organic world as did our predecessors. We are swimming in toxins every day and all have a role to play in the cleanup and healing of our planet. As we set this intention, we must support the beautiful creation that is our body in order to survive and thrive in this toxin filled world.

“Detox your mind, body, AND your contact list”

-Supa Nova Slom

Your provider at Carolina Total Wellness would be happy to discuss strategies to better optimize your body’s ability to thrive in this world of toxins.

Your partner in health,

Frances T Meredith, MD

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