05/12/2026
For years, acupuncture research was often dismissed with:
“If we don’t understand how it works, it must be placebo.”
That conversation has changed dramatically.
We now have research showing measurable local tissue changes around acupuncture needles, release of chemicals involved in pain control like endorphins, and neurological changes seen in fMRI studies.
But one big question has remained:
What exactly are the acupuncture meridians?
Many practitioners — acupuncturists, massage therapists, and physical therapists alike — have long suspected these pathways relate to the body’s connective tissue and fascial networks.
Now, emerging research into the interstitium may help explain this on a deeper level.
The interstitium is a body-wide network of fluid-filled connective tissue that interfaces with multiple layers of tissue throughout the body. Researchers are beginning to explore whether acupuncture points and meridians correspond with these connective tissue pathways and fluid channels.
From the recent New York Times article:
“One of the most intriguing areas of current research is whether there is a connection between the interstitium and the ancient Chinese practice of acupuncture.”
And:
“The acupuncture points have … been found to lie within the same areas of connective tissue where fluid flows through the interstitium.”
This doesn’t mean science has explained everything about acupuncture. But it does suggest that ancient physicians may have mapped functional networks in the body long before modern medicine had the tools to visualize them.
The science around acupuncture continues to evolve — and it’s exciting to watch modern research catch up to what patients and practitioners have observed for generations.
Article here:
NY Times article on the interstitium and acupuncture:
The detection of another circulatory system in the human body could have enormous scientific implications.