The Connective IssueThe Fascia Institute & Treatment Center Journal
A weekly report from the global pitch of fascia medicine — where research, hydration, and healing meet center field.
A Note from Dr. J
Matchday 4 goes back to fundamentals. After a five-year comeback and a deep dive on hormones, this week we answer the two questions we field more than any other at the clinic — starting with the one that makes patients freeze at a dinner party.
“Wait — what’s fascia?” If you’ve been treated here, you’ve probably been asked it and fumbled the answer. So this issue hands you the words — plus five analogies you can actually repeat. Then we take on the question filling our inbox as GLP-1s go mainstream: “I just started Ozempic or Mounjaro — what about all my other medications?”
Two fundamentals, one matchday. Because the teams that go deep in the tournament aren’t the flashiest — they’re the ones who never skip the basics. Lace up.
In This Issue
- Fascia 101: What Is Fascia? — and five analogies you can steal Highlight Reel
- On a GLP-1? What It Quietly Does to Your Other Meds Press Box
- Catch the Replay & Book Your Visit Extra Time
What Is Fascia? The plain-English version.
If you’ve been told your fascia is part of your pain, you’ve probably also had the awkward moment when a friend asks “what’s fascia?” and you freeze. Here’s the answer — with pictures you can borrow.
Fascia (say FASH-uh) is your body’s connective webbing — a continuous sheet of strong, flexible tissue that wraps around and runs through every muscle, bone, nerve, blood vessel, and organ, holding you together while letting everything glide and move as one. Here’s the image most people remember: if you could dissolve away everything except your fascia, you’d still see a recognizable, three-dimensional outline of your entire body, right down to each muscle.
For most of medical history, fascia was dismissed as packing material — the stuff surgeons cut through to reach the “important” parts. That view has changed completely. A new generation of researchers — including David Lesondak, Robert Schleip, and Carla and Antonio Stecco — has reframed fascia from passive wrapping into a living, sensing, body-wide system.
The wetsuit under your skin
A thin, stretchy wetsuit worn not over your skin but under it — one continuous piece, no seams, hugging every muscle and organ. When the suit is supple you move freely; when part of it stiffens, the whole suit pulls.
The white webbing in an orange
Peel an orange: pith around the whole fruit, a skin around each segment, fine threads inside every segment. Fascia is your body’s version — wrapping the whole of you, each muscle group, and the tiniest fibers. Same tissue, different scales.
A snag in a sweater
Fascia is woven like fabric. Pull a single thread at the shoulder and the pucker can appear all the way down at the hip. That’s why fascia explains pain that shows up far from its source — tension travels along the weave.
A spider’s web
Fascia is one connected web. Touch a single strand and the whole thing trembles. Tension or restriction in one area can be felt across a surprisingly wide region, because it’s all physically linked.
Cling film that’s lost its slip
Healthy fascia is slippery, so its layers slide smoothly. When it dries out or gets “sticky” — from injury, inflammation, or long hours in one position — it acts like bunched plastic wrap. The layers stop gliding, and that’s when you feel stiff, tight, or stuck.
So what does it actually do? At least four jobs. It holds your shape as internal scaffolding; it lets you glide so muscles slide past one another; it senses and feels — the deep fascia is so densely supplied with nerve endings that anatomists now consider it one of the body’s richest sensory organs; and it transmits force, passing tension from one part of the body to another, which is how a tight calf can influence your lower back.
This is also why fascia causes pain that scans miss. When it loses its glide — dehydrated, thickened, or stuck after injury, surgery, inflammation, or too much sitting — it both limits how freely you move and, because it’s so richly nerved, generates pain directly. That explains a frustrating pattern: the MRI or X-ray comes back “normal,” yet the pain and tightness are very real. The problem is often in a tissue standard imaging was never designed to show — which is exactly what Fascial Mapping® uses high-resolution ultrasound to find.
Steal this line
Keep one ready for the next time someone asks. For anyone: “Fascia is the body’s internal webbing — one connected sheet that wraps every muscle and organ. When it gets stiff or stuck, it hurts and limits how I move.” For the skeptic: “It’s real anatomy, not woo — surgeons cut through it in every operation. Science only recently mapped how full of nerves it is, which is why it can be a true source of pain.”
On a GLP-1? Here’s What It Does to Your Other Meds.
Semaglutide and tirzepatide do one thing that quietly changes how nearly every other pill works — they slow your stomach. Bring one onto the team, and the rest of your lineup has to adjust.
GLP-1 receptor agonists — semaglutide (Ozempic, Wegovy, Rybelsus) and tirzepatide (Mounjaro, Zepbound) — are now among the most prescribed medications in the country. They work in part by slowing how quickly your stomach empties. That’s a feature, not a flaw: it’s why you feel full sooner. But your stomach is also where most oral medications begin their journey into the bloodstream — so slowing the exit can change how fast, and sometimes how much, of a drug is absorbed.
Two details make this manageable rather than alarming. The effect is largest right after your first dose and after each dose increase, then fades as your body adapts. And because GLP-1 drugs are peptides, they aren’t broken down by the liver’s CYP450 enzyme system — so they don’t cause the classic “this drug raises the level of that drug” liver interactions. The real question isn’t what enzyme it blocks; it’s what it does to absorption and to blood sugar. That narrows the concerns to a short, predictable list.
Birth control — the one women on tirzepatide must know
This is the most important item on the list, because its consequences can’t be undone. The FDA labeling for tirzepatide (Mounjaro and Zepbound) states the drug may reduce the efficacy of oral hormonal contraceptives due to delayed gastric emptying — an effect largest after the first dose. The instruction: either switch to a non-oral method (IUD, implant, patch, ring, or injection), or add a barrier method for four weeks after starting and for four weeks after every dose increase. Notably, injectable semaglutide (Ozempic, Wegovy) has not shown this effect — a reminder that “GLP-1s” are not interchangeable.
When two glucose-lowering drugs meet
On its own a GLP-1 rarely causes low blood sugar. But paired with insulin or a sulfonylurea (glipizide, glimepiride, glyburide), the combined effect can push blood sugar too low. The fix is routine but deliberate: when a GLP-1 is added, the dose of insulin or the sulfonylurea often needs to come down — an adjustment for the clinician managing your diabetes, not something to navigate alone.
The medications that need a closer watch
When a drug’s safe range is narrow, even a small shift in absorption matters. Tirzepatide’s label specifically advises monitoring patients on drugs like warfarin (watch your INR) when a GLP-1 is started or increased. Oral semaglutide (Rybelsus) can raise levothyroxine levels, so thyroid labs may need rechecking. And Rybelsus has its own rule: take it on an empty stomach with no more than about 4 oz of plain water, at least 30 minutes before any food, drink, or other oral medication. With GLP-1s, timing is part of the prescription.
The conversation to have before any procedure
The same slowed stomach creates a specific risk under anesthesia or deep sedation: food left in the stomach can be brought up and inhaled (aspiration). Guidance from the American Society of Anesthesiologists suggests holding a daily GLP-1 the day of a procedure and a weekly one about a week beforehand — and this applies to endoscopies and colonoscopies too. The essential step is simple: tell your surgeon and anesthesiologist you take a GLP-1, well in advance.
That’s the thread through every section above — and why a GLP-1 belongs in a managed program, not mailed from an app. It’s why we built the FIT Lipedema and Inflammation Program (FLIP): a physician-run GLP-1 program with slow titration, monthly check-ins, and full lab monitoring built in. Designed for the patients careless prescribing harms most — those with hypermobile EDS, mast cell activation, and lipedema — but the principle applies to anyone on these drugs.
Explore the FLIP GLP-1 Program → Read the Full Article →Catch the Replay, then book your visit.
Whether something’s been quietly hurting or you just want to know how your body actually moves, the first step is the same: get it mapped.
New here? The fastest way to find what’s wrong is Fascial Mapping® — a high-resolution ultrasound diagnostic that watches your tissue while it moves and pinpoints exactly where the fascia is restricted, even when an MRI reads “clean.” From there, treatments like Hydrofascia Release™ restore the glide at the source.
Missed last week? Replay Vol. III — Callum Davison’s 1,726-day comeback, what testosterone does to your fascia, and our Father’s Day gift. Or go back to Vol. I, the inaugural Fascia Cup Edition.