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July 22, 2024 5 min read
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.
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."
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.
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 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.
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.
Managing stress effectively is crucial for maintaining gut health. Stress management can lower cortisol levels, reduce inflammation, and improve overall well-being.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.