08/05/2026
Tending to our fascia body is important in many ways 🩷
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"Fascia and the interstitium are distinct but intimately connected components of the body’s continuous architectural framework, often collectively described as a single "fascial-interstitial system."
Fascia refers primarily to the structural, collagenous layers of connective tissue that envelop, separate, and support muscles, organs, and nerves, providing mechanical stability and force transmission. In contrast, the interstitium consists of the fluid-filled spaces within these tissues, supported by a lattice of proteins and filled with hyaluronan-rich fluid that facilitates transport and signaling.
Recent research, notably by Nicholas Theise and colleagues at NYU Langone, has demonstrated that these interstitial spaces are not isolated pockets but form a continuous, body-wide network. This continuity allows for the rapid movement of fluids, immune cells, and signaling molecules across organ boundaries, functioning as a systemic communication highway distinct from the blood and lymphatic vessels. Consequently, while fascia provides the structural scaffold, the interstitium provides the dynamic fluid medium, together creating a unified organ-like system responsible for mechanical support, immune surveillance, and physiological homeostasis."