Researchers Cochrane and Friesen (1986) investigated the effect of hypnosis as a weight loss intervention among women. For their study, a total of 60 adult women (between 20 and 65 years of age) were recruited – each of whom was considered at least 20% overweight. At the time of the study, it was noted that none of the overweight women were participating in other weight loss programs nor utilizing other weight loss interventions.
The 60 participants were assigned to either: experimental groups (involving hypnosis with audiotapes or hypnosis without audiotapes) OR a non-hypnosis control group. Weight loss assessments were conducted immediately after treatment, as well as after a 6-month follow-up period.
Results indicated that individuals in both experimental groups (hypnosis without audiotapes / hypnosis with audiotapes) lost significantly more weight than those in the non-hypnosis control group.
Interestingly, researchers discovered that the impact on weight loss was the same regardless of the person’s background, self-esteem or the amount of time they had been overweight.
This was among the first controlled studies to investigate hypnosis for weight loss. It demonstrated that hypnosis contributed significantly to weight reduction. * Source: http://www.ncbi.nlm.nih.gov/pubmed/3745601
1985: Effectiveness of hypnosis as an adjunct to behavioural weight management.
In this study, researchers sought to determine whether adding hypnosis to a behavioral weight-management programme would significantly alter weight changes over the short-term, as well as the long-term.
A total of 109 individuals (between the ages of 17 and 67) were recruited to participate in the study. All 109 participants received a 9-week behavioural weight-management program, but only some received additional hypnosis. Results indicated that all participants lost a significant amount of weight by the end of the 9-week program – irrespective of whether they received adjunct hypnosis. But only the individuals that received the hypnosis experienced significant additional weight loss at longer-term at 8-month and 2-year follow-up assessments. Comparatively, those that received standalone behavioural weight-management programmes did not experience much, if any weight change at the 8-month and 2-year follow-up assessments.
Moreover, the participants that received additional hypnosis were more likely to achieve, as well as maintain personal weight goals. Researchers concluded that hypnosis appears useful as an addition to behavioral weight-management therapy.
Based on the fact that weight loss failed to differ between the hypnosis vs. non-hypnosis groups after 9 weeks, but differed significantly at 8-months and 2-years, implies that using hypnosis bolsters long-term psychological change to support weight loss.
In this study it was stated that those who received hypnosis were still losing weight after 2 years.
* Source: http://www.ncbi.nlm.nih.gov/pubmed/3973038
overall source mentalhealthdaily.com