The Nerva application is a self-management platform designed to help people living with irritable bowel syndrome (IBS) manage symptoms more effectively. It brings gut-directed hypnotherapy-style audio sessions into a home setting, reducing the need for in-person appointments.
Nerva uses a multi-part approach that includes gut-directed hypnotherapy sessions, guided breathing exercises, symptom tracking to help identify patterns, educational resources (articles, guides, and short animations), a toolkit for flare-ups, and optional in-app support features.
At the core of the Nerva experience is a structured six-week program focused on gut-directed hypnotherapy. Over this period, users learn techniques that may help reduce the intensity of common IBS symptoms and support day-to-day symptom management.
Users typically complete daily audio sessions lasting around 10 to 15 minutes. To begin, you find a comfortable seated or reclined position and close your eyes. The audio guidance then leads you through relaxation exercises, calming suggestions, and themed visualizations aimed at supporting the brain-gut connection.
According to Nerva, the sessions are intended to support stress regulation and improve the way the brain and gut respond to triggers, which may help with pain perception and symptom flares for some users. Beyond audio sessions, the app also includes educational articles about IBS, short video-style lessons, practical tips, and simple to-do lists.
In addition, Nerva offers tools to track diet, symptoms, and lifestyle factors. This can help users spot personal patterns and potential triggers over time. The goal is to support more informed choices about habits and routines that may affect symptoms.
Some versions of the platform also include community-style features where users can connect with others living with IBS. For many people, peer support can be helpful for motivation and reassurance.
After the initial six-week program, users can stop using the app or move into a maintenance phase. This ongoing stage typically focuses on reinforcing skills learned during the program and providing tools for handling flare-ups.
The gut-brain axis is a two-way communication pathway between the central nervous system (brain) and the enteric nervous system (gut). IBS is considered a disorder of gut-brain interaction, meaning that signaling between these systems may be disrupted.
While researchers are still studying the exact mechanisms behind gut-directed hypnotherapy, evidence suggests it may influence the brain-gut axis in several ways. Studies indicate it may help support gut motility and reduce visceral hypersensitivity, which can contribute to abdominal discomfort.
Research also suggests potential benefits for psychological factors that often worsen IBS symptoms, including stress, anxiety, and low mood. One clinical trial compared gut-directed hypnotherapy with the low FODMAP diet, a well-established dietary approach used in IBS management.
In that study, 78 IBS patients were assigned to one of three groups: gut-directed hypnotherapy alone, a low FODMAP diet alone, or both approaches combined. The results suggested hypnotherapy produced symptom improvements comparable to the low FODMAP diet for many participants.
By the end of the six-week intervention, around 70% of participants in the hypnotherapy group reported meaningful improvements in symptoms such as abdominal pain, bloating, gas, and bowel habits. The hypnotherapy group also showed larger improvements in anxiety and depression scores compared with the diet-only group.
At a six-month follow-up, improvements in the hypnotherapy group were maintained without requiring dietary changes, suggesting that hypnotherapy may be a useful standalone option for some people. However, this is one study, and broader research on gut-directed hypnotherapy as a monotherapy in IBS is still developing.
In contrast, the low FODMAP diet has been studied in many randomized controlled trials and is supported by a larger body of evidence.
Nerva is based on gut-directed hypnotherapy techniques that use suggestion, imagery, and progressive relaxation to support the brain-gut connection in IBS.
The program was developed by Dr. Simone Peters, a psychophysiologist specializing in gut-directed hypnotherapy. A 2023 study evaluated completion rates and symptom outcomes among 3,141 Nerva users during the six-week program.
In that study, 7% of users completed the full program. Among those who completed it, improvements were reported in symptoms such as bloating, abdominal pain, bowel habits, and perceived stress. Because completion was low, the number of full completers was limited, which makes it harder to generalize the results to all users.
The research also noted that responses to hypnotherapy can vary from person to person, with some individuals benefiting more than others. It further suggested that gut-directed hypnotherapy may be especially helpful for physical symptom relief, while cognitive behavioral therapy (CBT) may be more effective for certain psychological components.
Importantly, Nerva does not position itself as a replacement for medical care or prescribed IBS treatments. It is intended as a complementary tool that may support symptom management and quality of life.
New users can start with a 7-day free trial to explore the program before committing.
After the trial, a 3-month subscription (often enough time to complete the six-week course) is listed at US $78.99 (roughly AU $99.99 or £49). A monthly option is also available at US $43.99 per month (approximately AU $67.80 or £35).
Pricing and availability may vary depending on location, device platform, and subscription plan.
Nerva has an average rating of around 4.5 stars across the Apple App Store and Google Play Store, based on more than 12,000 reviews. On Trustpilot, it is rated lower, with many positive comments focused on the in-app experience. Common criticisms mention subscription pricing, billing issues, and occasional technical problems.
Nerva is a mobile self-management tool that guides users through a structured six-week program based on gut-directed hypnotherapy techniques. Additional features like symptom tracking, educational IBS content, and flare-up tools can make the experience more practical and supportive for daily use.
Evidence specific to Nerva currently comes primarily from one published study, where only a small percentage of users completed the full program. Because individual responses to hypnotherapy vary, Nerva may be helpful for some people but not others. As with any IBS tool, it is best used alongside guidance from qualified healthcare professionals, especially if symptoms are severe, persistent, or changing.
