Results are not guaranteed and each person will respond differently. Changing the relationship of mind and digestion is a process that takes place over weeks, so patience and commitment is required.
Gut directed hypnotherapy was first formally researched by Dr. Peter Whorwell, a pioneering gastroenterologist at the University of Manchester. He introduced the first scripted hypnotherapy protocol for IBS patients in 1984. In a study, Whorwell found that 71% of patients responded to therapy. Of these, 81% maintained their improvement over time.

There are presently over 35 studies in the published empirical literature, including 17 randomised controlled trials that have assessed clinical outcomes of such treatment. All IBS hypnotherapy studies have reported significant improvement in gastrointestinal symptoms.
A recent Australian study conducted by Monash University found that seventy per cent of participants responded positively to hypnotherapy. There was a significant improvement in their overall and individual gut symptoms (abdominal pain, bloating, wind, satisfaction with stool consistency, nausea etc) by the end of the six-week study. This improvement was also maintained six-months post-treatment. The study also found that hypnotherapy was effective psychologically, too, lowering anxiety and depression.

Sirona uses Gut Directed Hypnotherapy just like that investigated in studies. Sirona, with its additional weekly themes looking at Mindfulness, symptom and stress management offers far more besides the core hypnosis sessions researched in most studies.