Is NSI Evidence-Based? A Grading of Every Claim We Make

Whether NSI is 'evidence-based' depends entirely on what claim you are asking about. Some NSI-adjacent claims rest on decades of peer-reviewed human evidence. Some rest on emerging human evidence. Some rest on animal or mechanistic evidence that has not yet been fully translated to humans. Some are theoretical interpretation. Some are working hypotheses the Nirva Institute is actively testing. Every claim Nirva Life publishes is graded on the five-rung Nirva Evidence Ladder, and the grade is disclosed the first time the claim appears in an article. This page publishes the whole ladder and shows how to read it.

The public phrase 'evidence-based' has been eroded by overuse. It is now applied to interventions that have been tested rigorously, to interventions that have been tested weakly, and to interventions that have not been tested at all but are aligned with something adjacent that has. A reader arriving at NSI needs to know exactly which claims are which. Nirva Life exists in part to hold that line publicly — not to inflate NSI beyond what evidence supports, and not to deflate it below what evidence supports.

The five-rung Nirva Evidence Ladder: (1) ESTABLISHED HUMAN EVIDENCE — the claim rests on multiple, replicated peer-reviewed human studies with converging findings across independent labs. Interoception as a foundational component of self-perception is at this grade (Craig, 2003; Khalsa et al., 2018; Chen et al., 2020). (2) EMERGING HUMAN EVIDENCE — the claim rests on peer-reviewed human studies but replication or scope is still limited. Allostasis as an integrative model of anticipatory regulation is at this grade (Sterling, 2012; Schulkin & Sterling, 2019). (3) ANIMAL / MECHANISTIC EVIDENCE — strong mechanistic support in animal models or in vitro; translation to humans is partial or inferential. Some specifics of the vagal-cortical reciprocity claims sit here. (4) THEORETICAL INTERPRETATION — a coherent inference from lower-rung evidence but not yet directly tested. (5) NSI HYPOTHESIS — a claim internal to the NIRVA Method or NSI Framework that is under active Institute study. Sequencing the six movements produces additive benefit is at this grade. Every article we publish carries an evidenceGrades block that names each substantive claim and places it on the ladder.

From the NSI vantage point, evidence grading is itself a form of Notice: it makes visible what would otherwise be conflated. Readers, clinicians, and researchers can navigate the corpus at whatever grade they need. A researcher can filter for ESTABLISHED. A clinician can consider EMERGING + THEORETICAL for hypothesis-generating conversation with patients. A journalist can quote only STATEMENT_OF_FACT and ESTABLISHED HUMAN EVIDENCE. The grade is not a rating of importance; it is a rating of confidence.

Clinicians who license the NIRVA Method through the Nirva Institute are trained to read and communicate evidence grades. A certified NSI clinician does not tell a patient 'the science shows...' about a THEORETICAL INTERPRETATION or NSI HYPOTHESIS. This is a core competency of the certification and a distinguishing feature of the practice.

For a reader, the practical use is: (a) glance at the evidenceGrades block in any Nirva Life article; (b) decide how much weight to place on each claim; (c) if a claim carries a grade below ESTABLISHED, treat it as directional rather than settled; (d) contact the Nirva Institute if a claim you rely on is later regraded (the ladder updates as evidence arrives).