Dr. Wei F. Chen’s research is drawing attention to an unexpected connection—and a small Parkinson’s report gives scientists another reason to investigate.
Your brain manages a demanding operation. Names, appointments, emotions, the location of your car keys. Behind all that activity, fluid also needs to circulate and leave.
Could helping that fluid find its way out become part of treating neurological disease?
That question is moving from laboratory experiments into early human research. Cleveland Clinic plastic surgeon Dr. Wei F. Chen is among the researchers exploring it. His recent social media reflection on lymphatic care points toward a fascinating possibility: the neck may deserve a bigger role in conversations about brain health.
The science is worth a closer look. So are the differences between an intriguing observation and a treatment that has earned its place in routine care.
A connection beyond the brain
Brain fluid exchange and lymphatic drainage are connected processes. The term glymphatic describes fluid movement and exchange within the brain; lymphatic vessels in its surrounding membranes help carry fluid onward toward drainage pathways outside the skull, including those in the neck. They are related parts of a larger picture, rather than interchangeable names for one system.[1]
Researchers are asking whether improving those downstream pathways could help when brain clearance becomes impaired.
Think of it as investigating the exits, rather than looking only at what is happening inside the building. The comparison is useful, although living biology is considerably more complicated than plumbing.
For background on these pathways, read Your Brain Has a Housekeeping Department.
What Chen is proposing
In a 2025 paper coauthored with reconstructive microsurgeons, Chen helped outline a proposed role for lymphatic supermicrosurgery in Alzheimer’s disease. The idea involves creating drainage connections using exceptionally small lymphatic vessels—not operating directly on brain tissue.[2]
The underlying question is whether changing drainage outside the skull could influence the brain’s fluid environment and the handling of disease-associated proteins.
That paper is a framework for investigation. A proposed mechanism still has to survive careful testing: does the procedure change the intended pathway, do patients benefit, and do benefits outweigh risks?
What happened when researchers stimulated the neck in mice?
A separate team led by researchers including Hokyung Jin and Gou Young Koh published an important experimental study in Nature in June 2025.[1]
They mapped routes carrying cerebrospinal fluid toward lymph nodes in the face and neck. Using a device that delivered controlled mechanical stimulation through the skin, they increased measured drainage in mice and improved drainage impaired by aging.
This is an intriguing demonstration that an accessible area outside the skull can influence fluid outflow in an animal experiment.
It is also a precise experiment with a specific device. It does not establish that an ordinary massage produces the same effect in a person, improves memory, or prevents dementia. Mapping work in monkeys helped explore the anatomy; the stimulation findings were not a human treatment trial.
The Parkinson’s report behind the excitement
In August 2026, Chen, Yazan Mahafza, Winnie Pao, Angela Bialorucki and Heidi Simon published a report describing two men with Parkinson’s disease who received lymphatic therapy directed to the face and neck.[3]
Their total scores on the MDS-UPDRS, a Parkinson’s assessment in which lower scores indicate less impairment, changed from 55 to 36 in one patient and 57 to 52 in the other. The improvements differed: the first patient had a larger change in the motor examination; the second had little motor change.
Those observations deserve follow-up. But two cases, without a comparison group, cannot establish effectiveness. Medication changes, fluctuating symptoms and treatment expectations complicate interpretation.
Crucially, the researchers did not directly measure improved brain drainage or clearance of disease-associated proteins. Symptom changes cannot tell us that the proposed mechanism occurred.
Bialorucki’s contribution is especially meaningful for therapists: clinical observations helped generate a research question. The next step is testing it with larger, controlled studies.
Alzheimer’s surgery is being studied, too
A different research group, led by Xiaohong Fu and colleagues, reported a prospective study of deep cervical lymphatic–venous surgery in 139 people with severe Alzheimer’s disease in February 2026.[4]
The investigators reported changes in cognitive assessments and biological markers following surgery. However, the study had no parallel control group, so it could not establish that surgery caused the changes or altered the disease’s course.
The risks also belong in the conversation. The report documented transient delirium in 44 patients, sleep disturbances in 83, and one reoperation for bleeding and hematoma. This is invasive experimental care, with anesthesia and surgical risks.
These results add human observations to an emerging field. They do not prove that lymphatic surgery reverses Alzheimer’s—and they cannot be used as evidence that manual lymphatic drainage does so.
What this means for people interested in lymphatic care
The most useful message is hopeful and specific: researchers are taking the brain–neck drainage connection seriously enough to investigate it from several directions.
There is a substantial distance between an animal experiment, a two-person clinical report and a dependable treatment recommendation. Larger controlled trials, direct measurements of the proposed mechanism, meaningful everyday outcomes and longer follow-up will help determine what comes next.
For anyone living with Parkinson’s or Alzheimer’s, this research is a topic to discuss with their treating medical team. It does not provide a basis for replacing established care or trying a home neck-drainage routine.
For therapists, it offers something valuable already: a reminder that careful observations can open important scientific questions.
Sometimes progress begins with someone asking whether a system medicine has overlooked deserves another look. The lymphatic system is getting that look now—and the questions are getting much more interesting.
Our work with manual lymphatic drainage keeps us interested in this research. The studies discussed here do not establish neurological benefits from a Hands On massage session.
Sources
1. Jin H, Yoon JH, Hong SP, et al. Increased CSF drainage by non-invasive manipulation of cervical lymphatics. Nature. 2025. doi:10.1038/s41586-025-09052-5.
2. Hong JP, Chen WF, Nguyen DH, Xie Q. A Proposed Role for Lymphatic Supermicrosurgery in the Management of Alzheimer’s Disease: A Primer for Reconstructive Microsurgeons. Archives of Plastic Surgery. 2025;52:96–103. doi:10.1055/a-2513-4313.
3. Mahafza Y, Pao W, Bialorucki A, Simon H, Chen WF. Draining the Brain: A Novel Noninvasive Lymphatic Therapy for Parkinson’s Disease. Lymphatics. 2026;4(3):44. doi:10.3390/lymphatics4030044.
4. Fu X, et al. Deep cervical lymphatic–venous anastomosis attenuates cognitive dysfunction and biomarker abnormalities in severe Alzheimer’s disease: A prospective single-arm study. Alzheimer’s & Dementia. 2026;22:e71150. doi:10.1002/alz.71150.
