You want the honest version: what TRE® studies actually show, and what they do not. Marketing claims and research are not the same thing.
In short: a 2026 scoping review identified 22 TRE® studies reporting potential benefits for stress-related outcomes, while noting that study designs were not consistently rigorous and more research is needed.
The 2026 scoping review at a glance
A scoping review published in 2026 synthesised 22 TRE studies (24 records) published between 2007 and 2025. Sample sizes ranged from 1 to 152 participants. Study designs were mixed. The most common were single-group pretest-posttest designs (8) and randomised controlled trials (8), with other designs making up the rest. The review included peer-reviewed and non-peer-reviewed records, because high-quality published trials are still limited.
| What was looked at | What the review found |
|---|---|
| Stress and anxiety | Of 17 studies that assessed stress and/or anxiety, 16 reported a reduction |
| Sleep | Improvement in 6 of 8 studies that assessed sleep; in 2 of those, similar gains appeared in alternative treatment groups |
| Cognitive outcomes | Reported in a small number of studies; some noted improvements |
| Neurological conditions | Preliminary reports in areas such as Parkinson's disease and multiple sclerosis; not established treatments |
| Overall quality | Promise, with a clear need for more rigorous research and longer follow-up |
Is TRE® evidence-based?
There is early, promising research, but not yet enough high-quality evidence to call it proven. "Evidence-based" in a strong clinical sense would require larger, well-controlled trials with consistent methods. TRE® is not there yet.
Does research show TRE® helps PTSD?
Some studies have explored trauma-related outcomes, and there is at least one published case report of a veteran using TRE for PTSD self-care. That is far from proof. TRE® should not replace PTSD treatment. A separate 2023 meta-analysis of body- and movement-oriented interventions for PTSD found a moderate average benefit with mostly low-quality studies, and called for better trials. See TRE® safety and trauma and the body.
Examples of individual studies (briefly)
- Berceli 2009: 61 students; reduced state anxiety after six sessions; heart-rate-variability findings mixed; author described results as not entirely conclusive.
- Berceli 2014: 21 caregivers; self-reported quality of life improved; no control group.
- MS pilot and 2025 RCT: small samples; exploratory findings on fatigue and symptoms; the RCT did not show a significant unadjusted fatigue difference between groups.
Where can you read more? The references at the bottom of this page link the scoping review and key studies. For how the practice is explained, see how TRE® works. These pages are wellness education, not a claim that TRE® is a proven medical treatment.
