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Inside the Interstitium, the Human Body's Hidden Pathways

“This is clearly a third bodily system for the circulation of fluids,” in addition to the cardiovascular and lymphatic systems, says Rebecca Wells, a professor of medicine at the University of Pennsylvania and a senior author of the study. The human body suddenly looked less like a patchwork quilt and more like a knitted blanket.

https://www.nytimes.com/interactive/2026/05/11/magazine/interstitium-anatomy-acupuncture-medicine.html