Irritable bowel syndrome (IBS) is one of the most common digestive disorders in America. According to the American College of Gastroenterology, around 10% to 15% of the total population have this disease. It is also more common in women than men.1
Why does IBS happen? As noted by Johns Hopkins Medicine, it’s theorized that people with IBS generally have hypersensitive nerves on their gastrointestinal tract.2 As for treatment, drugs are often the first option, such as Alosetron (Lotronex) and Eluxadoline (Viberzi).3 However, these medications are often fraught with side effects and eventually harm your health further, which is why I don’t recommend relying on them.
If drugs are out of the picture, then what’s the next best strategy? As it turns out, moving your body — exercise — helps manage IBS. Even better, it’s free and something you can do right away.
How Exercise Benefits IBS
The benefits of exercise for improved cardiovascular health,4 longer stamina5 and enhanced cognitive function6 have been well-documented already. Interestingly, a growing body of research shows that it also benefits your digestive health. But before going into the mechanisms involved, it’s important to establish the context first. As explained in a report published by The New York Times:7
“IBS is caused by miscommunication between the brain and the gut, which leads to pain and bloating during the normal digestion process. For some people it primarily causes constipation, while others experience mostly diarrhea or a combination of the two.”
That said, a study8 published in Nutrients investigated how exercise exerts a positive effect on IBS. The researchers divided the benefits into three different areas:
• Intestinal transit time — Exercise positively affects digestive health by encouraging better gut motility to help maintain optimal movement of digested food through the intestines. As you exercise, there’s less time for digested food to spend time in the colon, thereby decreasing the risk of “harmful bacterial fermentation and the production of toxic metabolites.”9
• Short-chain fatty acid (SCFA) production — Exercise boosts the production of SCFAs in the gut, which are produced when beneficial bacteria ferment dietary fiber. The SCFAs boost gut health by serving as a primary energy source for your colonocytes, which are the cells surrounding your colon.
SCFAs also exhibit anti-inflammatory effects that protect the integrity of the gut barrier, which is helpful in reducing intestinal inflammation — a common problem in IBS patients.10
• Immune system modulation — Your immune system begins to undergo positive changes when you start exercising. For example, it helps reduce inflammation while also enhancing mucosal immunity, which creates a positive effect for the gut microbiota.
Exercise also promotes the circulation of immune system cells that help remove pathogens, minimizing their risk of multiplying and creating disease. According to the researchers, “an overgrowth of pathogenic bacteria can lead to conditions such as small intestinal bacterial overgrowth and IBS.”11
Exercise Mediates the Link Between Your Gut and Brain
Your gut is often referred to as the “second brain.” As such, when you undergo periods of psychological stress, your gut health will also go through the same experience. According to registered dietitian Destini Moody:12
“Prolonged stress can have many physiological effects that can adversely affect gut health like that overproduction of stomach acid that causes heartburn, digestion that moves too slowly or too quickly, and a disruption in the balance of good and bad bacteria in the gut.”
There’s compelling evidence showing the link between your gut and the brain, also known as the “gut-brain axis.” Currently published evidence13 notes that the gut and brain communicate via “both fast-acting neural and delayed immune-mediated mechanisms in a bidirectional manner,” and both respond to feedback from one another.
Subsequently, this connection is disrupted by a stressor, noticeable changes are felt. This mechanism is explained in a study14 published in Frontiers in Cellular and Infection Microbiology:
“Animal models of stress-related disorders showed critical changes in fecal and mucosal microbial composition, metabolites, immune gene expression in the terminal ileum, as well as in serum cytokine concentration. This suggests that the microbiota is sensitive to stress exposure and highlights the importance of analyzing the microbiota community composition by microbial niche …
In addition, stress-induced mediators, such as the corticotropin-releasing factor, increased macromolecular permeability in the healthy human colon via corticotropin-releasing factor receptor on subepithelial mast cells.”
In light of these findings, one strategy that you can implement right away to help reduce your stress levels is getting regular exercise. Going back to the report by The New York Times, exercise “can restore the connection between and the brain and impact IBS.”15
According to a study published in the International Journal of Molecular Sciences,16 chronic stress, even at moderate levels, increases your risk of neuropsychiatric diseases, and to combat this issue, exercise is recommended. They noted that exercise exerts an anti-inflammatory effect, while also providing a boost in mood, memory, learning and central nervous system function.
Moderate-Intensity Exercise Is the Right Approach
If you’ve been sedentary for quite some time and looking to incorporate exercise, you’re probably tempted to turn up the intensity right away to compensate. However, this is the wrong approach, as there’s compelling evidence showing that moderate-intensity exercise is the optimal way to stay fit. Simply put, there’s no need for you to engage in high-intensity exercise to stay healthy.
Dr. James O’Keefe, a cardiologist at St. Luke’s Hospital in Kansas City, shared this discovery to me when I interviewed him after publishing his study in the Missouri Medicine journal.17 In fact, the findings were so profound that I drastically altered my exercise regimen. From his research, he noted that vigorous exercise, especially at long periods (total of four to seven hours per week) didn’t get any additional benefit compared to sedentary people.
Conversely, O’Keefe noted that moderate-intensity exercise, which is loosely defined as exerting enough effort to where you’re slightly winded but can still carry on a conversation, is better and cannot be overdone. He also discovered that this people who follow this approach have double the improved reduction in long-term mortality compared to vigorous exercisers.
To gain the benefits of exercise for your gut health, it’s important to stay committed to a regular schedule. Going back to the Nutrients study,18 the researchers emphasized this very point. They also noted the importance of working with a trained professional, as well as taking it easy at the beginning to prevent injury:
“Long-term exercise interventions provide sustained benefits, maintaining the gut microbiota’s diversity and stability, supporting immune functions, and reducing systemic inflammation.
However, exercise programs must be tailored to individual needs to avoid exacerbating IBS symptoms. Personalized exercise plans starting with low-to-moderate intensity and gradually increasing in intensity can maximize the benefits and minimize risks.”
Yoga — A Beneficial Way to Boosting Your Fitness and Digestive Health
According to The New York Times,19 most experts suggest trying calming exercises, such as walking and yoga to help manage IBS. And as it happens, O’Keefe mentions that yoga is a moderate-intensity exercise.20 This means that not only will you be supporting your overall health, but you’re also giving your digestive health a big boost.
Research21 also shows that yoga also has other benefits, such as improved body flexibility and immune function, maintained body weight and decreased stress levels, which, again, is a risk factor for IBS.22 If your IBS constantly produces symptoms of constipation, here are four yoga poses that will help manage it, according to PACE Hospitals in India:23
Corpse pose24 |
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Bow pose25 |
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Fish pose26 |
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Locust pose27 |
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Three Yoga Poses for Diarrhea-Centric IBS
What if your IBS leans more toward diarrhea instead of constipation? PACE Hospitals recommends these yoga poses instead:28
Half spinal twist29 |
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Triangle30 |
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Wind-relieving31 |
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Two Yoga Poses for Gas and Bloating IBS
If you’re predominantly experiencing gas and bloating due to your IBS, PACE Hospitals recommends these two yoga poses:32
Seated wide angle33 |
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Gentle inversion34 |
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