Just like finding a long-lost relative, scientists would like to introduce you to an organ you never knew you had: the interstitium.  New research published in Scientific Reports has revealed that the human body contains a network of fluid-filled channels that had previously been undiscovered. The spaces were found all around the body’s connective tissue which lines the digestive tract, lungs, urinary

systems, and surrounding muscles.  While the fluid-carrying channels have not been officially designated an organ by a majority of scientists, Neil Theise of New York University’s School of Medicine says the interstitium holds nearly a fifth of the body’s fluids. “We think they act as shock absorbers,” Theise said, via New Scientist. READ MORE