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How Does Chronic Stress Affect Gut Health?

July 22, 2024 5 min read

How Does Chronic Stress Affect Gut Health? - Balance ONE

Chronic stress messes with your gut microbiome's delicate balance. That can often lead to dysbiosis – an increase in “bad” bacteria and lowering of “good” bacteria.

This stress-induced imbalance can appear in the form of gut-related illnesses like irritable bowel syndrome and inflammatory bowel disease. 

If left on its own, this might leave you with a mix of diarrhea, constipation, and/or stomach aches. Understanding these mechanisms is crucial for developing effective treatments and management strategies for stress-related gut issues.

In this article, we'll discuss how stress affects the gut-brain connection and how you can reduce impact of that stress on your gut.

Key Takeaways

  • Chronic stress disrupts the balance of gut microbiota, leading to an increase in harmful bacteria and a compromised gut barrier.
  • Common symptoms include bloating, food sensitivities, fatigue, and digestive issues.
  • Stress eating often leads to cravings for high-fat, sugary foods, which negatively impact gut health.
  • Exercise, eat healthy, get quality sleep, take time off, practice mindfulness, reduce unhealthy habits, socialize, practice acceptance, listen to music, and minimize phone use.

Stress Causes Dysbiosis and a Leaky Gut

Chronic stress is the unseen cause of many gut health problems, disrupting the delicate balance of our gut microbiota. This disruption, known as dysbiosis, tips the scales in favor of pathogenic bacteria. 

When stress hits, it triggers a domino effect: physiological responses shift, and the gut’s microbial makeup goes haywire. Gut imbalance triggers inflammation, which can become chronic and worsen our gut health if left untreated.

Stress not only disrupts microbial balance but also compromises the gut barrier, paving the way for the notorious "leaky gut."

What Is “Leaky Gut”?

Leaky gut, or increased intestinal permeability, is where the tight junctions in the gut lining become loose. This allows harmful substances to pass into the bloodstream, provoking an immune response, hence the “leak.”

Normally, the gut barrier stands strong, but leaky gut causes it to weaken, stirring up systemic inflammation.

What Causes Leaky Gut?

Leaky gut can be triggered by chronic stress, poor diet, and infections.

Chronic stress is particularly insidious as it constantly undermines the gut barrier, essentially “thinning” this protective layer over time. The result is a compromised intestinal lining that cannot effectively block harmful substances.

Symptoms of Leaky Gut

The telltale signs and symptoms of leaky gut include bloating, food sensitivities, fatigue, and digestive issues. These symptoms often overlap with other conditions, making leaky gut challenging to diagnose. 

Stress Triggers Unhealthy Food Choices

When stressed, our brain begins to act differently. One of the ways in which it reacts happens to involve food, also known as stress eating

Unfortunately, the food we pick while stress-eating isn't exactly what you’d call “healthy.”  People often crave high-fat, sugary “comfort” foods when stress eating,  providing short-term stress relief but long-term damage to our gut health. 

Stress-Induced Food Cravings

Stress affects brain regions responsible for decision-making and impulse control, leading to poor dietary choices. Moreover, cortisol (the stress hormone) tends to increase appetite and cravings for unhealthy foods. 

Impact on Metabolism

Stress can slow down our metabolism, spike insulin levels, and give us belly bloat. These changes can lead to weight gain and further strain on gut health, as excess weight and poor metabolic health are linked to dysbiosis.

10 Quick Tips To Reduce Anxiety or Worry and De-Stress

Managing stress effectively is crucial for maintaining gut health. Stress management can lower cortisol levels, reduce inflammation, and improve overall well-being.

1. Exercise

Going out for a quick run, hike, cycle, or even walk can lower perceived stress levels and improve overall mood. Exercising also helps secrete hormones that manage stress, or at least make sources of stress not as heavy to deal with.

2. Eat "Clean"

Eating healthy, whole foods is a no-brainer for many reasons, but it also helps relieve stress and gut inflammation. These foods are your vegetables, fruits, nuts and seeds, all rich in essential vitamins and minerals. Foods like sauerkraut and yogurt also contain gut-friendly probiotics

Do your best to avoid ultra-processed foods high in sugar and other additives, especially hard-to-spell ingredients.

3. Get Quality Sleep

Poor gut health keeps us awake at night. Do your best to get 7-9 hours of restful sleep each night. Create a sleep-friendly environment: cool, dark, and quiet. Consistent sleep schedules and pre-sleep routines can improve sleep quality.

4. Take Time Off

Regular breaks from work are not just about you getting rested, but also relieving gut stress. Whether it's a vacation or a weekend getaway, taking time off refreshes your mind and body, reducing stress and preventing burnout.

5. Be Mindful

Meditation and deep breathing anchor you to the present moment. These techniques reduce stress and promote relaxation. Try diaphragmatic breathing, alternate nostril breathing, or guided meditation.

6. Reduce Unhealthy Habits

Excessive caffeine or alcohol consumption can increase anxiety and ruin sleep quality. Go for herbal teas and water instead. It goes without saying that you’re better off avoiding smoking and recreational drugs, as they exacerbate stress over time on top of the other detrimental things they do to us.

7. Socialize

Engage with friends and family. Social support can buffer against stress, providing emotional comfort and practical help. Join clubs, sports teams, or volunteer for causes you care about.

8. Practice Acceptance

At the end of the day, we can’t always have control of what’s happening to us. Accepting what you cannot change reduces stress. Focus on what you can control, so you won’t have to worry about what you can’t.

9. Listen to Music

When you work or study, it’s sometimes a good idea to have your favorite playlist in the background. Calming music can lower cortisol levels and improve mood. Try making playlists of your favorite tracks and add them as part of your daily routine. Alternatively, you can pick from thousands of curated lists and maybe find something new that you enjoy.

10. Minimize Phone Use

Smartphones are double edged swords. On one hand, it always feels nice to have access to entertainment and general knowledge. On the other, excessive screen time increases stress, especially with the non-stop negativity found on social media. 

Set boundaries for smartphone and computer use. Reducing screen time can also improve sleep and mental health because of reduced blue light exposure.

Final Thoughts

Protecting our gut from chronic stress involves getting into the habit of being mindful, exercising more, and just eating healthy. You can also add more hours to your sleep, and focus on social connections to bolster resilience.

Regardless of how you deal with chronic stress, staying proactive about it not only keeps your mind fit but also keeps your gut in balance. There is a deep connection between mental wellness and digestive health.

FAQs About Gut & Stress

What is the Vagus Nerve?

The vagus nerve is responsible for involuntary functions like digestion and heart rate. This neural system transmits signals both ways, influencing our overall gut health. When you’re stressed out, vagal activity changes, often exacerbating gut problems and dysregulation.

What Is Gut Anxiety?

Gut anxiety, or a nervous stomach, can be described as stomach discomfort caused by stress or anxiety. When we’re stressed, our nervous system signals the gut, initiating a fight-or-flight response. This can lead to nausea, cramping, bloating, diarrhea, and indigestion, disruptions in our gut function.

Why Is My Gut Sensitive To Stress?

Stress impacts the gut through the brain-gut axis, involving the vagus nerve. Corticotropin-releasing factor (CRF), a stress hormone, sensitizes the gut, leading to irritable bowel syndrome and dyspepsia. Changes in gut motility and microbiota balance exacerbate digestive symptoms, creating a vicious cycle of gut distress.

How Do You Tell if Stomach Issues Are From Stress?

Stomach issues from stress can feel like knotted sensations, cramping, churning, bloating, nausea, or diarrhea. The fight-or-flight response slows or disrupts digestion, causing abdominal pain and other functional gastrointestinal disorders. 

How Does Chronic Stress Harm the Gut?

Chronic stress negatively affects gut motility and microbiota, which may lead to leaky gut and dysbiosis. It triggers unhealthy food choices, further harming gut health. Stress hormones, like CRF, impairs gut sensitivity, causing symptoms that won’t go away and general discomfort.

Balance ONE
Balance ONE


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