This is a YouTube video titled "The Circulatory System Secret You’ve Never Heard About" containing a detailed explanation about the human circulatory system, focusing on the microvascular circulation and its susceptibility to inflammation and pressure changes. The content appears to be a monologue or lecture by a single speaker discussing physiological concepts related to blood flow and vascular health.
More than 70% of our circulation is actually not conducted by the heart. The 30% of our circulation that is done by the heart are our major arteries and our major veins, meaning there's pressure behind them to send blood to the tissues. There's pressure to return it from the tissues. But about 70% of our circulatory system is what we call microvascular. Even only a single cell can fit into this capillary system. What if this part of our circulation gets compromised? This is one of the reasons why we're so sensitive to high levels of homocysteine, a natural immun amino acid that can rise in the blood, potentially cause vasoconstriction and drive pressure up. It's also why this part of our vascular system is hard to reach. And it's also why this part of our vascular system is so susceptible to inflammation.
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