In 2018, a paper in Scientific Reports made headlines for “discovering” a new organ. Researchers had found that the connective tissue running beneath our skin and around our organs isn’t the dense, solid wall doctors had always assumed. It’s a lattice of collagen bundles suspended in fluid, more like a soaked sponge than a sheet of plastic wrap. A follow-up study published in 2021 by pathologist Neil Theise and colleagues went further, tracking tattoo ink and colloidal silver particles as they moved from the skin and colon into the surrounding fascia. The particles didn’t stop at organ boundaries. They kept going, following continuous channels of fluid that the researchers found running through skin, colon, liver, and the sheaths around nerves and blood vessels alike. Their estimate: the fluid in these spaces adds up to more than three times the combined volume of blood and lymph in the body.
For most of medicine, this was a surprise. For a handful of biophysicists and bodyworkers, it was closer to a confirmation of something they’d been feeling and describing for decades. Biologist Mae-Wan Ho argued that organisms are built as liquid crystals, and that the water saturating our connective tissue isn’t inert filler. It’s structured, responsive, and capable of carrying signals faster than nerves can. Craniosacral practitioners, working from a very different tradition, have described the body under their hands as a single fluid field rather than a collection of separate parts.
Put these threads together and a picture emerges of the body as something closer to a continuous, water-based communication system than a machine made of discrete components wired together by nerves alone.
Continuous, Not Compartmentalized
The anatomical case starts simply. Take away the skin, muscle, and organs of a body and what’s left isn’t empty space. It’s connective tissue: collagen, elastin, and the ground substance that fills the gaps between them, forming an unbroken scaffold from scalp to sole. Anatomists have known this in a general sense for a long time. What Theise’s team demonstrated is that the fluid within this scaffold doesn’t stay put in local pockets. It moves.
Using tattoo pigment already sitting in skin and colon tissue, the researchers watched particles travel from their injection sites into deeper fascia, muscle layers, and the tissue sheaths surrounding blood vessels and nerves. They confirmed the same pattern using a stain for hyaluronic acid, a gel-like molecule that fills these interstitial spaces, and found it distributed continuously across tissue layers that had always been treated as separate compartments. Their conclusion was direct: the fibrous coverings of nerves and vessels have no clean break from the connective tissue of the organs they pass through, and neither do the fluid spaces inside them. The structural picture it confirms is of a body-wide, uninterrupted, fluid-filled network.
What “liquid crystal” actually means
A liquid crystal is a state of matter partway between a liquid and a solid crystal. Its molecules can flow and move like a liquid, but they retain a degree of alignment and order like a solid, and that order responds sensitively to small changes in temperature, pressure, or an applied electric field.
Ho’s research, some of it done through direct microscopic imaging of developing fruit fly embryos, showed that biological tissue behaves the same way. Using a technique that detects tiny differences in how tissue bends polarized light, her lab found that muscle tissue in maturing larvae underwent a sudden, coordinated shift from a disorganized to a highly aligned state as the muscle matured, the hallmark of a liquid crystal phase transition. The same imaging revealed shifting, colored patterns in early embryos at exactly the stage when body pattern is being laid down. Her argument, laid out at length in The Rainbow and the Worm, is that this isn’t a quirk of fruit flies. Cell membranes, DNA, muscle proteins, and above all the collagen that makes up most of the body’s connective tissue are all liquid crystalline to varying degrees.
Why does the phase of matter matter for health? Liquid crystals are unusually good at responding to and propagating signals. A small disturbance in one part of an aligned liquid crystal can ripple through the whole structure almost instantly, the way a nudge to one end of a taut rope travels to the other end. Solid tissue can’t do this. Disorganized, unaligned tissue can’t do this either. It takes the particular, in-between order of a liquid crystal.
The Body’s Other Circuitry
If collagen provides the scaffold, water is what turns that scaffold into a functioning circuit. This is where the physics gets specific enough to matter.
Collagen fibers don’t sit in a bath of ordinary water. Studies using X-ray diffraction and nuclear magnetic resonance have identified distinct populations of water around each collagen molecule: a layer bound tightly within the fiber itself, a looser shell of water hydrogen-bonded to the fiber’s surface, and free water filling the space between fibers. This isn’t a trivial detail. Ordered, hydrogen-bonded water supports something called proton jump conduction, in which positive charge moves rapidly from one water molecule to the next along the chain, without any single molecule having to physically travel far. Dielectric measurements on collagen back this up directly: conductivity along a hydrated collagen fiber runs roughly a hundred times higher than conductivity across it, and it increases sharply with hydration, peaking near the body’s normal internal temperature.
The practical implication is that hydrated connective tissue functions as a body-wide, semi-conducting network, distinct from and much faster in its local responsiveness than nerve conduction.
A tissue that remembers
If the liquid crystalline matrix can carry a signal, the next question is whether it can hold onto one. Is it possible that this network functions as a kind of distributed body memory?
Developmental biology already accepts a version of this: embryonic cells commit to becoming a specific body part long before that structure appears, and they hold onto that commitment for life. Salamanders draw on it to regrow a lost limb. Humans mostly can’t, partly because our wounds seal over before the deeper regenerative signals get a chance to work.
Ho locates that memory in the connective tissue itself, not the brain. As collagen shifts between closely related structural states, the water bound around it shifts too, and those changes tend to stick. She describes the result as a form of body-wide memory: not thought, but sensitivity, fast intercommunication, and a kind of continuity that outlasts any single moment.
Craniosacral practitioners arrive at something similar from a completely different direction. Franklyn Sills describes the body’s connective tissue and its bound water as one unified fluid field, and he treats trauma as more than a mechanical injury: it leaves a dense, held site within that field, a spot where the normal ease of tissue and fluid gets locally stuck.
Our biodynamic craniosacral courses describe what this feels like under the hands: certain areas take on a denser quality, and when one releases, an old memory sometimes surfaces for the client. It lines up with the physical picture Ho arrived at from a completely different angle: a body-wide network that holds state, not just structure.
What this suggests for practice
None of this requires believing in anything mystical. The straightforward version is that the body’s connective tissue and the water bound within it form a continuous, responsive network, one that’s structurally confirmed by recent anatomical research and functionally plausible given what’s known about hydrated collagen’s electrical properties. Gentle, sustained touch, the kind practiced in craniosacral work and related modalities, may work in part because it engages this network directly, on a timescale that gives a locally held area room to shift and realign, rather than because it delivers a strong mechanical force.
What does seem fair to say is this: the old picture of a body assembled from separate parts, with communication travelling only through nerves is looking increasingly incomplete. Something continuous runs beneath it, made largely of water, capable of carrying information and, it seems, of storing it.
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