The state of scientific knowledge doesn't always make much sense. We know more about the surface of Mars than we do about the bottom of our own ocean, for example, and we've figured out almost every bizarre quantum force but somehow still fail at explaining gravity. Tuesday's discovery puts another head scratcher on that list: we're still discovering new human organs. Meet your interstitium. It's everywhere inside you, and it could be the explanation for medical mysteries ranging from why skin wrinkles to why cancer spreads.
A Series of Tubes
What It All Means
Written by Ashley Hamer March 28, 2018
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