The authors used a specialized computational model to simulate blood flow in carotid arteries at three stages of stenosis: without blockage, with a mild 30% blockage, and with a moderate 50% blockage. But for patients already experiencing stenosis, it may not be as beneficial. In healthy patients, an elevated heart rate increases and stabilizes the drag force blood exerts on the vessel wall, reducing stenosis risk. Without the necessary blood, the brain lacks oxygen, and the patient experiences a stroke. The narrowing is called stenosis, and while it can be very difficult to detect early stages of plaque accumulation, stenosis is dangerous because it limits blood flow to the brain. When fat, cholesterol, and other particles build up the inner carotid walls, they form a plaque that narrows the artery. Contrastingly, for healthy patients and those with only slightly blocked arteries, exercise is beneficial for maintaining healthy blood flow.Ĭarotid arteries supply blood flow to facial tissues and the brain and are located on both sides of the neck. Researchers from the Indian Institute of Technology Kharagpur found that an elevated heart rate can induce a stroke in patients with highly blocked carotid arteries.
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