Glossary
The fascia, bodywork, and nervous-system terms used across this site. Each entry has a hash anchor — link to a specific term with /glossary/#fascia and similar.
A region of soft tissue where fascia, muscle, or other connective tissue has densified and stuck to itself or to neighboring structures, restricting the normal sliding and gliding between layers. Adhesions can form after injury, surgery, inflammation, or repeated stress, and once established they often persist long after the original cause has resolved.
A low-level laser device that delivers light into tissue without generating heat. Used in Tissue Alchemy to prepare densified fascia or scar tissue for hands-on work — research suggests cold-laser therapy may help reduce inflammation, support circulation, and make tissue more responsive to subsequent manual technique.
The connective tissue network that surrounds and links every muscle, tendon, ligament, joint, organ, and nerve in the body. Once dismissed as inert wrapping, fascia is now understood as a sensory-rich, dynamic tissue that responds to load, communicates with the nervous system, and remodels itself around the demands you place on it.
The gel-like, hydrated matrix that fills the spaces between collagen fibers and cells in connective tissue. Its viscosity changes in response to pressure, heat, and movement — one of the mechanisms behind fascia's thixotropic behavior. When ground substance becomes dehydrated or stagnant, the surrounding fascia tends to feel densified.
A sensory receptor that responds to mechanical pressure, stretch, or vibration and communicates that information to the nervous system. Fascia is densely populated with several types — including Pacinian corpuscles, Ruffini endings, and interstitial mechanoreceptors — which is part of why fascial bodywork can influence nervous-system state, not just tissue shape.
Relating to both muscle (myo-) and fascia together — the two are functionally inseparable. Most bodywork that calls itself 'fascial' is really myofascial because fascia and muscle move and remodel as one continuous system. The term is most familiar from Myofascial Release, the modality John Barnes developed.
The branch of the autonomic nervous system associated with rest, recovery, digestion, and repair — often summarized as 'rest-and-digest.' Tissue tends to release more readily when the body has shifted toward parasympathetic dominance, which is why Tissue Alchemy paces sessions specifically to invite that state rather than override it.
Fibrous tissue that forms during the body's healing response to injury, surgery, inflammation, or repeated stress. Scar tissue has a different fiber arrangement than the surrounding tissue — denser, less organized — which can change how nearby fascia and muscles glide and load. Old scar tissue is often still mechanically active years or decades after the original injury healed.
The branch of the autonomic nervous system associated with activation, defense, and mobilization — the 'fight-or-flight' branch. When the body is stuck in low-grade sympathetic activation for years on end, fascia tends to densify around the bracing pattern. Effective bodywork has to shift the system toward parasympathetic before tissue will fully release.
An architectural concept describing structures that hold themselves up through balanced tension and compression rather than rigid framing. Applied to the body, bones are the compression struts and fascia, muscles, tendons, and ligaments are the tension network. The model explains why chronic pain often shows up far from where the load pattern actually originates.
Sharon's term for the way fascial release tends to unfold during a Tissue Alchemy session. The most superficial restrictions are addressed first; as those release, deeper layers become accessible and willing to let go in turn. The pattern is sequential, layer by layer, rather than digging directly toward the symptom.
The property by which a material becomes less viscous when stress is applied to it over time, and gradually returns to its original state when the stress is removed. Fascia exhibits this behavior — sustained low load, vibration, or warmth can make it temporarily more pliable. It's one of the mechanisms behind why fascia responds better to time than to force.
Sharon's term for the phase in a course of Tissue Alchemy sessions when healthy, reorganized tissue starts outnumbering restricted tissue. Before the Tipping Point, sessions feel powerful but tend not to hold long between visits. After it, changes hold more easily and sessions can space out — the body actively supports the new pattern instead of fighting it.
A precision instrument that delivers high-frequency, low-amplitude mechanical vibration into densified fascia and scar tissue. Used in Tissue Alchemy alongside manual technique to address chronic restriction patterns and stimulate mechanoreceptors in ways that may help the nervous system down-regulate protective guarding. Reaches tissue at tendinous junctions near joints that aggressive manual work or needling can't safely address.
A material property that combines viscous (fluid-like, time-dependent) and elastic (spring-like, instantaneous) behavior. Fascia is viscoelastic — it responds differently to fast force than to sustained low load. The viscous component is why fascia tends to change shape slowly under steady pressure, which is the mechanism Yin Yoga and slow fascial holds rely on.