Listening to the body''s electric field — tuning forks as instruments of coherence.
Quick answer
Biofield Tuning is a sound therapy using weighted and unweighted tuning forks in the space around and on the body to detect and resolve perceived distortions in the human biofield. Developed by Eileen Day McKusick, it is based on her Biofield Anatomy map of the electromagnetic field.
What Biofield Tuning is commonly used for
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Background
Biofield Tuning was developed by Eileen Day McKusick, a researcher and practitioner based in Vermont, USA. McKusick began exploring the therapeutic use of tuning forks in 1996, initially trained in sound healing through the writings of Jonathan Goldman and others. Over two decades of clinical practice (reportedly 20,000+ sessions), she developed a detailed ''Biofield Anatomy'' map documenting consistent patterns she observed in the field around the body — specific emotional patterns and life experiences appearing in predictable locations. Her 2014 book ''Tuning the Human Biofield'' presented this map and the methodology. She also authored ''Electric Body, Electric Health'' (2021), which presents a bioelectric model of health. McKusick completed a master''s degree exploring the biofield concept and has advocated for research into the biofield at academic conferences. The Biofield Tuning Institute offers practitioner certification through a structured training programme.
The practice
The practitioner activates a tuning fork and slowly moves it through the space around the client''s body, beginning approximately 1.5 metres away and moving inward toward the body. The practitioner listens for changes in the fork''s overtone quality — areas where the tone becomes distorted, buzzy, sharp, or resistant are interpreted as locations of energetic ''noise'' or ''stuck'' charge in the biofield. According to McKusick''s Biofield Anatomy model, the field is organised chronologically — the outer edge corresponds to birth and gestation, while areas closer to the body correspond to more recent life events. The practitioner uses the coherent frequency of the tuning fork to ''comb'' through these areas of incoherence, proposing that the sound helps the body''s electrical system to recalibrate. When areas clear, the fork''s overtone returns to a clean, smooth sound. Weighted forks (felt as vibration) are applied directly on the body at specific points, while unweighted forks (heard as sound) are used in the field. Sessions address the body region-by-region using McKusick''s biofield map.
A session lasts 60–75 minutes. The client lies fully clothed on a massage table. The practitioner begins by activating a tuning fork and scanning the field around the feet, slowly moving the fork outward. The practitioner listens to the fork''s overtone quality, noting areas of distortion. Working systematically around the body — feet, legs, hips, solar plexus, heart, throat, head — the practitioner uses the fork to ''comb'' through areas of perceived incoherence. Clients may experience sensations of warmth, tingling, emotional release, memories surfacing, or shifts in energy. Weighted forks applied to the body produce felt vibration. Sessions may focus on specific regions or issues. Practitioners document their findings according to the Biofield Anatomy map. Most people find sessions deeply relaxing. Some experience emotional processing in the hours or days following a session. Practitioners recommend adequate hydration and gentle activity after sessions.
Mechanisms
The biological and psychological processes proposed to underlie how Biofield Tuning is thought to work.
The tuning fork produces a stable, coherent frequency that is proposed to entrain areas of dissonance in the biofield, supporting the body''s electrical system to recalibrate.
McKusick''s model proposes that the biofield is organised chronologically and anatomically, with specific emotions and life experiences stored in predictable locations relative to the body.
The practitioner uses changes in the tuning fork''s overtone quality as a diagnostic tool — distortion indicates areas of incoherence, while a clean tone indicates resolution.
Evidence Assessment
Evidence for Biofield Tuning is very limited. No RCTs have been published. McKusick has published observational data from her practice and presented at conferences including the Consciousness and Healing Initiative. A small pilot study examining adrenal stress response before and after sessions showed cortisol changes in some participants. The broader field of ''biofield science'' has received attention from the Consciousness and Healing Initiative (CHI) and the National Institutes of Health, though biofield therapies as a category have limited but growing evidence. Jain and Mills (2010) published a systematic review of biofield therapies in the International Journal of Behavioral Medicine finding preliminary support for pain reduction, though noting significant methodological limitations across studies. The specific claims about chronologically organised biofield anatomy have not been independently verified. The reported therapeutic effects may be attributable to sound therapy effects, relaxation response, therapeutic relationship, and placebo.
Evidence varies by condition and individual response. This information is for educational purposes only and does not constitute medical advice.
Questions
Suitability
People interested in sound-based healing approaches. Those drawn to body-centred work that does not require touch. Individuals curious about the relationship between sound, vibration, and wellbeing. People who enjoy auditory experiences and find sound soothing. Those seeking an alternative framework for understanding and processing life experiences.
People with pacemakers or other implanted electronic devices (vibration may interfere). Those in the first trimester of pregnancy (practitioner caution advised). Individuals with active cancer (McKusick advises caution due to potential for increased circulation). People seeking evidence-based clinical treatment. Those uncomfortable with metaphysical biofield concepts.
Based on clinical use and available research. Evidence varies by condition and individual response.
These conditions have insufficient or varying evidence. Biofield Tuning may be explored alongside conventional care at practitioner discretion.
Biofield therapy systematic review shows preliminary support for pain reduction; tuning fork vibration may complement.
Sound therapy and deep relaxation may reduce anxiety through parasympathetic activation.
Tuning fork sound produces coherent frequencies proposed to recalibrate areas of biofield distortion associated with stress.
Sound therapy studies show mood and tension improvements; may support sleep through relaxation.
Regular sessions may address accumulated stress patterns stored in the biofield according to practitioner model.
Sound-based relaxation and emotional processing during sessions may provide gentle mood support.
Related
Based on the conditions Biofield Tuning is used to support, practitioners commonly work with people experiencing these symptoms: