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Watch Spinal stenosis - Learn more

Watch Spinal stenosis - Learn more

Spinal stenosis - Learn more

Brain, spine and nerve collection • 1m 2s

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    A stroke happens when oxygen-rich blood cannot reach the brain cells, often due to blockage or damage of a blood vessel. This loss of oxygen damages brain cells within minutes, which then start dying. Occurring mostly in older adults, a stroke is a serious medical emergency.