A version of this post was originally published on Hey Sigmund


What Butterflies Can Teach Us About the Mind/Body Connection


We all know the expression “butterflies in my stomach” and we all tend to agree on what that feeling signifies for us at a psychological level. We use this expression to describe feeling nervous, anxious, or excited. But did you know that the butterflies you feel in your “stomach” are actually representative of a complex and mutually reciprocal relationship between your brain and your gut?

There has been a growing understanding and exploration by psychologists, psychiatrists, physicians, and researchers about the role our gut bacteria plays on our mood — most notably, in the experience of anxiety.

The statistics on anxiety are staggering and trending north each passing year.


Consider these stats:


According to the Anxiety and Depression Association of America (and NIMH), anxiety is the most common mental illness in America today.

An estimated 40 million adults (18 and older) or 18 percent of the population endorse symptoms of anxiety (not to mention, one out of eight children). Treatment of anxiety accounts for one-third of the $148 billion dollars spent annually on mental illnesses in America.

In other words, we spend $42 billion a year on the treatment of anxiety disorders in America. Women are 60 percent more likely to develop an anxiety disorder than our male counterparts. These numbers are terrifying to me as a clinician, a woman, and a mother.


anxiety and depression Dr Sarah Sarkis


The symbiotic relationship between our gut health and how we feel is a hot topic of discussion and research. Scientists, physicians, and mental health practitioners are increasingly aware of the important relationship between the balance of “critters” in our gut and how we experience our brain, mood, and emotions. So, before we begin to discuss what we can do to optimize this important relationship, let’s explore the underlying processes.

From a holistic vantage point, our gut is known as the “second brain” and there are structural/anatomical reasons for this reference. The “second brain,” known scientifically as the enteric nervous system, consists of sheaths of neurons located in the walls of our gut. We refer to these sheaths as the vagus nerve and it runs from our esophagus to our anus, roughly nine meters long.


Did you know that…


The bacteria, fungi, and viruses that make up your body’s microflora outnumber your body’s cells by 10 to 1.

95 percent of the body’s serotonin supply is found in our bowels.

The vagus nerve contains 100 million neurons, which is more neurons than the spinal cord or peripheral nervous system hold.

There are over 100 trillion bacterial cells contained within the gut.

Our gut sends far more information to our brain than the other way around.


(For further reference, see “Think Twice: How the Gut’s ‘Second Brain’ Influences Mood and Well-Being.”)


When the precarious balance of bacteria in our gut becomes disturbed, we often experience symptoms associated with Irritable Bowel Syndrome and other gastrointestinal related disorders. These symptoms are likely to start out as complaints of bloating, gas, constipation, or diarrhea. When this occurs, the domino effect of issues becomes inevitable and thus begins the cascading symptom patterns that plague tens of millions of Americans struggling with GI-related disorders.

Due to the interconnectedness of our brain and enteric nervous system, via the vagus nerve, once our gut bacteria is out of whack, we are vulnerable to a pattern of emotional discomfort, usually marked by increasing episodes of anxiety and depression.


gut health Dr Sarah Sarkis



How does our gut bacteria become so unbalanced?


Here are a few of the many ways in which we accidentally (and sometimes, unavoidably) contribute to this pattern of disturbance:


Excessive and unmanaged stress

Overuse of antibiotics

Prolonged use of steroids

Intestinal infections

High sugar / low fiber diet (in other words, the Standard American Diet (SAD))

Regular consumption of alcohol


There is a bourgeoning area of interest and research exploring the use of probiotics to treat a wide variety of mental illnesses. Pharmaceutical companies are attempting to create a new line of psychiatric medications referred to as Psychobiotics, but this field of research is still in its infancy.

There is also a growing body of research that is exploring a strain of specific probiotics to help mitigate acute symptoms of anxiety. For example, in clinical trials involving the study of mice, Bifidobacterium longum and Lactobacillus Rhamnosus have shown to help normalize anxiety-like behavior. There are also a growing number of small human studies exploring the efficacy of using probiotics to combat anxiety symptoms. The preliminary data from these small studies echo the success from the rat-based research. In one study, 22 men reported feeling “less stress” after taking the strain-specific probiotic for a month. Additionally, their lab results revealed lower levels of the stress hormone cortisol while under duress. Both of these strains appear to work on the GABA receptors, an inhibitory neurotransmitter involved in the regulation of acute anxiety. GABA is the receptor influenced when you take a benzodiazepine such as Xanax or Ativan.

My emphasis within my clinical practice is to encourage my patients to explore the ways in which they can participate in healing their own bodies through the careful understanding of what their symptoms are telling them about their own unique emotional and physical constitution. Through seeking to find solutions that are rooted in personal empowerment, we start to shift our relationship to accountability, responsibility, and personal growth.

So, that being said, there is a lot we can do right from the comfort of our own homes to start the process of realigning the balance of our gut flora. As you can imagine, most of it involves cleaning up our diet, being mindful of the relationship between food and mood, exploring our habits and patterns, and better metabolizing our emotions.


Here are some action steps you can take in an effort to begin the process of healing your gut, mind, and brain:

Note: It generally takes a minimum of 90 days for these suggestions to be effective.


Eliminate sugars

I’m talking about the “fake” sugars. We are not talking about eliminating whole fruits. Rather, cutting out the baked goods, cookies, ice cream, and store-bought sugary products that wreak havoc on the bacteria in our gut and lead to cyclical patterns of emotional and physical cravings.


Eliminate all simple starches and reduce intake of even complex starches.

The goal is to reduce the amount of yeast-producing foods we consume.


Avoid trans fats.


Reduce or stop drinking alcohol for the 90-day period.

If this is difficult for you to do, observe the nature that “relationship.”


Add in fermented and living foods.

Please try to avoid store bought yogurts even though they are considered fermented. These products are loaded with sugars and often end up exacerbating imbalance.


Consume copious amounts of veggies.

Attempt to eat 6-9 cups of vegetables per day. Avoid the use of store bought dressings etc., which are loaded with sugar and preservatives. If your GI tract is especially damaged, consider cooking all of your veggies before consumption.


Consume foods high in Omega-3 fatty acids.

Foods like walnuts, salmon, flax, some types of squash, etc.


Aim to consume local and organic sources of animal protein.

Doing so will reduce your ingestion of unwanted antibiotics and feed-based chemicals.


Discuss with your practitioner if the use of a probiotic or prebiotic will benefit your unique situation.

A probiotic introduces specific strains of good bacteria, while a prebiotic introduces carbohydrates that serve as food for the bacteria already present in your gut.



Exercise more days than not, enough to sweat. The goal is to find joy in it. But if you hate it, that’s okay. Do it anyway.


Drink mostly water.

Try eliminating all other juices, soda, etc. for 90 days.


Work with a skilled psychologist or mental health professional.

Work to metabolize past trauma, identify faulty thought patterns, and implement mindfulness-based skills to better manage your central nervous system.


Women: Get a comprehensive hormone panel.

Work with your healthcare practitioner to understand the relationship between your gut health, hormone balance, and emotional equilibrium.


Implement a daily mindfulness/meditation practice.

The goal is observe your mind, not to clear it or control your thoughts. Simple observation and balanced breathing. This is a restful and restorative way to calm the central nervous system and recalibrate the vagus nerve. Mindfulness based relaxation has a myriad of benefits and has been shown to participate in changing neural pathways of emotional and physical pain. I suggest starting with a ten minute morning practice and increasing it to twenty minutes once you feel the “mindfulness muscle” is more robust.


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The Mind Body Brain Connection Dr Sarah Sarkis


Exploring the relationship between our mood and our gut bacteria reveals an interconnected relationship between the mind, brain, and body via the enteric nervous system and vagus nerve. This relationship is the foundation of why it is critical to address your emotional discomfort from a holistic and integrated approach to your wellness.

The good news is that because we now know and understand that there is a connection between the mind and body, we have the knowledge and tools to make immediate changes that will yield profound, albeit subtle, results in how we feel. The better we understand and participate in our own sense of wellness and empowerment, the more likely we are to embark on change that starts from within.


If you are reading this and you find yourself relating to this content, I encourage you to seek out professional help to better understand what these symptoms mean for your unique constitution.

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