Managing the Relationship Between Anxiety and IBS
- Beverley Sinclair Hypnotherapist

- Nov 17
- 3 min read
Managing Irritable Bowel Syndrome (IBS) can seem like an ongoing struggle, particularly when anxiety exacerbates symptoms, and those symptoms, in turn, heighten anxiety. This cycle forms a complicated connection between the mind and body, necessitating care for both physical and mental well-being. Recognizing how anxiety can trigger IBS flare-ups and how IBS symptoms can amplify anxiety is essential for effectively managing this condition.
How Anxiety and IBS Affect Each Other
Anxiety can trigger IBS flare-ups by activating the body's stress response. When you feel anxious, your body releases adrenaline, preparing you for a "fight or flight" situation. This response speeds up gut motility, meaning food moves faster through your digestive tract. For people with IBS, this can cause diarrhoea or urgency, worsening symptoms during stressful moments.
At the same time, IBS symptoms like abdominal pain, bloating, or sudden diarrhoea can increase feelings of anxiety. The unpredictability of symptoms may cause worry about social situations or daily activities, creating a feedback loop where anxiety and IBS feed off each other.
The Role of Serotonin in the Gut
Most people associate serotonin with mood regulation in the brain, but about 90% of serotonin is actually produced in the gut. In the digestive system, serotonin controls gut motility, helping regulate how food moves through the intestines. However, serotonin made in the gut cannot cross into the brain, so it does not directly affect mood.
This means that while serotonin plays a role in both mood and digestion, the serotonin in your gut works separately from the serotonin in your brain. This separation helps explain why IBS symptoms and anxiety can influence each other without serotonin being the direct link.

Stress, Adrenaline, and Gut Function
When your body senses danger or stress, it releases adrenaline as part of the fight or flight response. This hormone increases gut motility, which can reduce water absorption in the intestines and lead to diarrhoea. For someone with IBS, this reaction can make symptoms worse during anxiety-provoking situations.
Understanding this connection helps explain why stressful events or ongoing anxiety can trigger IBS flare-ups. Managing stress becomes essential not only for mental health but also for controlling IBS symptoms.
Heightened Pain Perception in IBS
Research shows that people with IBS often have a heightened sensitivity to sensations in their gut. Normal levels of gas or intestinal stretching, which most people barely notice, can feel painful or uncomfortable for those with IBS. This increased pain perception makes symptoms more distressing.
When anxiety and stress are added to the mix, this sensitivity can intensify, making IBS symptoms feel even worse. This explains why managing anxiety is a crucial part of reducing the discomfort caused by IBS.
Lifestyle Changes to Manage Anxiety and IBS
Managing both anxiety and IBS involves addressing physical symptoms and mental health. Making changes to your lifestyle can reduce stress and improve gut health. Here are some effective strategies:
De-stress with Mindfulness and Exercise
Long-term stress harms your gut, so finding ways to relax is essential. Some helpful methods include:
Mindfulness meditation: Practicing mindfulness can reduce the severity of IBS symptoms and build emotional resilience.
Yoga and gentle exercise: These activities improve gut motility and lower stress hormones like cortisol.
Nature walks: Spending time in green spaces helps lower stress and boost mood.
Prioritize Sleep
Lack of quality sleep increases stress levels and worsens both anxiety and IBS symptoms. Aim for consistent, restful sleep by:
Keeping a regular sleep schedule
Creating a calming bedtime routine
Avoiding screens and caffeine before bed
Balanced Diet and Hydration
Eating a diet that supports gut health can ease IBS symptoms. Consider:
Avoiding trigger foods like caffeine, spicy foods, or high-fat meals
Eating smaller, more frequent meals
Drinking plenty of water to stay hydrated
Seek Support
Talking to a healthcare professional about both your IBS and anxiety can help you develop a personalized plan. Therapies such as cognitive-behavioral therapy (CBT) have shown success in reducing anxiety and improving IBS symptoms.

































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