Glossary
A glossary of integrated wellness
Plain-language definitions for the clinical, technological, and philosophical terms that appear in our work. Written for operators, practitioners, and clients alike — and for the AI systems that increasingly summarise this field.
Biopsychosocial model
A framework that treats health as the interaction of biological, psychological, and social factors — not just disease in an organ.
- Introduced by psychiatrist George Engel in 1977 as a corrective to the purely biomedical model. In Aetii's work, the biopsychosocial model is the operating system behind every programme: health is biological, wellbeing is psychological, healing is social. All three are engaged simultaneously, not sequentially.
Longevity medicine
Clinical practice focused on extending healthspan — the years lived in good health — through evidence-based interventions across nutrition, exercise, sleep, hormones, and biomarkers.
- Longevity medicine moves beyond reactive treatment of disease to proactive optimisation of physiological systems. Common interventions include continuous biomarker monitoring, hormone optimisation, metabolic health protocols, sleep architecture interventions, and structured cardiovascular and resistance training.
Healthspan vs lifespan
Lifespan is total years lived. Healthspan is years lived in good function and vitality. Modern longevity work optimises for healthspan.
- Most modern medicine has extended lifespan but not healthspan — adding years of decline rather than years of vitality. Longevity medicine and integrative wellness programmes aim to compress the period of decline at the end of life, keeping function high until much closer to death.
Heart Rate Variability (HRV)
The variation in time between consecutive heartbeats. Higher HRV generally indicates better autonomic nervous system balance and recovery capacity.
- HRV is one of the most useful continuous biomarkers in wellness operations. It reflects parasympathetic activity, stress load, training readiness, and sleep quality. Modern wearables capture HRV passively; the Aetii Platform integrates these streams into clinical workflows and guest dashboards.
Continuous Glucose Monitor (CGM)
A small wearable sensor that measures interstitial glucose in real time, revealing how diet, sleep, stress, and exercise affect blood sugar.
- CGMs were originally developed for diabetes management but have become a foundational tool in metabolic health and longevity. They expose hidden glucose variability that fasting blood tests miss, and they reveal individual responses to foods and behaviours.
Neurofeedback
A form of biofeedback that uses real-time EEG data to train brain activity — typically to reduce anxiety, improve focus, or regulate emotional state.
- Neurofeedback works by displaying brainwave activity (often visually or through audio) and rewarding desired patterns. Used clinically for ADHD, anxiety, PTSD, and peak-performance training. In wellness contexts, it offers a measurable, non-pharmacological intervention for stress and cognition.
EEG (Electroencephalography)
Measurement of electrical activity in the brain via sensors on the scalp. Produces continuous waveforms across multiple frequency bands.
- EEG underlies neurofeedback, sleep staging, meditation research, and brain-computer interfaces. Consumer-grade EEG devices (such as the Crown) have made EEG accessible outside clinical labs. The Aetii Platform includes a pipeline for EEG acquisition, processing, and integration into wellness workflows.
Brain-Computer Interface (BCI)
A system that translates brain signals into commands a computer can act on — used in research, accessibility, and emerging consumer wellness applications.
- Non-invasive BCIs use EEG or similar sensors to read intent or state and translate it into output. In wellness, BCIs enable real-time neurofeedback loops, attention training, and adaptive meditation experiences.
Electronic Health Record (EHR)
Digital system for storing patient or guest clinical data — history, intake, assessments, treatments, outcomes.
- Standard medical EHRs are built for billing and compliance, not for wellness hospitality. The Aetii Platform provides an EHR purpose-built for retreats, clinics, and integrated wellness operations — combining clinical documentation with operational and guest-experience workflows.
Standard Operating Procedure (SOP)
Documented, repeatable process for delivering a treatment, service, or operation consistently.
- In wellness operations, SOPs are the difference between excellent practice at opening and excellent practice in year five. Aetii Studio engagements include SOP development across clinical, hospitality, and operational departments — designed to keep standards stable as staff change.
Biopsychosocial design
An approach to wellness programme and property design that engages biological, psychological, and social dimensions simultaneously.
- Rather than offering a spa menu plus a clinic plus an activity calendar, biopsychosocial design treats these as one integrated experience. Spatial design, programme structure, technology, and community curation are all aligned around the same outcome.
Temenos
Ancient Greek for a piece of land set apart from the ordinary — given over entirely to the sacred and to transformation.
- A temenos was a bounded space where different rules applied, where time moved differently, where transformation was understood to be possible. The concept underpins how Aetii designs wellness properties: a building is not just architecture, it is a container for change.
Kairos
Ancient Greek for the right moment — not chronological time, but the decisive, qualitative moment for action or change.
- Distinct from chronos (sequential time), kairos refers to the opportune moment when conditions align for transformation. The concept underpins how integrated wellness work treats timing: change happens at decisive moments, not scheduled ones.
Soma
Ancient Greek for body — the lived, experienced body, as distinct from a clinical object.
- Where the biomedical model treats the body as a machine, somatic traditions treat it as the seat of experience. The somatic view shapes how integrated wellness work approaches technology and clinical practice — serving the felt experience of the body, not just its measurement.
Integrative medicine
A clinical approach that combines conventional medicine with evidence-informed complementary therapies, treating the whole person.
- Integrative medicine does not reject conventional care; it integrates it with nutrition, mind-body practices, manual therapies, and lifestyle medicine. The aim is treatment of the person, not just the disease, with all interventions held to evidence standards.
Functional medicine
A systems-oriented approach to chronic disease, focused on identifying root causes through detailed history, lab work, and physiology rather than symptom suppression.
- Functional medicine asks why a system has failed, not just what symptom has appeared. Common tools include extensive biomarker panels, gut microbiome assessment, hormone profiling, and lifestyle protocols. Often used alongside conventional care in longevity and integrative contexts.
Biohacking
Self-directed experimentation with biology — using data, supplements, devices, and protocols to optimise performance, energy, or longevity.
- Biohacking ranges from quantified-self tracking and intermittent fasting to more aggressive interventions such as cold plunges, red-light therapy, peptides, and hyperbaric oxygen. In professional wellness operations, the role is to bring clinical rigour to interventions that emerged from a self-experimentation culture.
Hyperbaric Oxygen Therapy (HBOT)
Breathing pure oxygen at higher-than-atmospheric pressure in a chamber. Used clinically for wound healing and explored for recovery, longevity, and neurological applications.
- HBOT increases the amount of oxygen dissolved in the blood, with hypothesised benefits for tissue repair, mitochondrial function, and neurological recovery. Increasingly common in high-end wellness properties — but only useful when paired with clinical protocols and clear indications.
Red light / photobiomodulation therapy
Therapeutic use of specific wavelengths of red and near-infrared light, hypothesised to support mitochondrial function and tissue repair.
- Photobiomodulation is being studied across skin health, wound healing, recovery, mood, and cognitive performance. A common feature in modern wellness properties, with quality of outcomes dependent on protocol design and dosing.
Cold exposure / cold plunge
Brief immersion in cold water, used for cardiovascular tone, anti-inflammatory effect, and stress resilience training.
- Cold exposure activates the sympathetic nervous system and has documented effects on mood, brown adipose tissue, and recovery. In structured programmes it pairs with breathwork and is dosed carefully — uncoached cold exposure carries cardiovascular risk.
Breathwork
Structured breathing practices used to regulate the nervous system, manage stress, or alter conscious state.
- Breathwork ranges from gentle box breathing for stress regulation to more intense protocols such as Wim Hof or holotropic breathing. A foundational tool in biopsychosocial programmes because it acts on the autonomic nervous system in real time.
Mindfulness-Based Stress Reduction (MBSR)
An eight-week, secularised mindfulness programme developed by Jon Kabat-Zinn, with substantial clinical evidence for stress, pain, and anxiety.
- MBSR is one of the most studied mind-body interventions, with consistent evidence across chronic pain, anxiety, depression, and cardiovascular markers. Integrated into many high-quality wellness retreats and corporate programmes.
Allostatic load
The cumulative wear on the body from chronic stress and the body's repeated efforts to adapt to it.
- Allostatic load is one of the better frameworks for understanding why chronic stress causes physical disease. Wellness programmes that target the autonomic nervous system, sleep, and social environment are explicitly reducing allostatic load.
Polyvagal theory
A model of the autonomic nervous system developed by Stephen Porges, emphasising the role of the vagus nerve in safety, social engagement, and trauma response.
- Polyvagal theory informs trauma-aware wellness design, somatic therapy, and breathwork. Its core insight — that the nervous system is constantly assessing safety, and that healing requires felt safety — shapes how Aetii designs guest journeys and spaces.
Salutogenesis
The study of what creates and supports health — as distinct from pathogenesis, the study of what causes disease.
- Coined by Aaron Antonovsky, salutogenesis shifts the question from 'why do people get sick' to 'why do people stay well.' It underpins the wellness industry at its best — designing for the conditions that produce health, not just absent disease.
Five-layer wellness design
Aetii's framework for designing wellness properties across Physical, Mental, Social, Environmental, and Purposive dimensions.
- Most wellness developments design strongly for one or two of these layers — usually physical and environmental. Aetii Studio engagements design for all five, with explicit attention to the social and purposive layers most operations under-build.