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Hidden Interstitium: A Third Body Network Found
11 May
Summary
- Scientists discovered a third body network called the interstitium.
- This network connects tissues and allows fluid and cell movement.
- Ancient medicine traditions may have known about this network.

Scientists are exploring the possibility of a third circulatory system within the human body, a vast interconnected network they've termed the interstitium. This discovery, stemming from observations in 2021 of tattoo ink penetration into skin layers, revealed a previously unknown pathway between tissue layers.
The interstitium comprises a system of fluid-filled spaces acting as channels throughout the body. These channels allow for the movement of fluids, cells, and molecules before they re-enter the known lymphatic and cardiovascular systems. This finding expands our understanding of human physiology and its implications for health are significant.
Interestingly, the concept of such a network aligns with ancient medical knowledge, particularly from traditional Chinese medicine. Practitioners of these older systems may have recognized these pathways for centuries, though lacking the microscopic technology available today to confirm their findings.