@doctor.asky: A sudden blocked brain artery silently kills brain cells and triggers a terrifying ischemic stroke. An ischemic stroke begins the moment a blood vessel feeding the brain becomes blocked, cutting off oxygen and glucose instantly. Brain cells cannot survive without constant blood flow. Within seconds they stop functioning, and within minutes they begin to die permanently. This damage spreads outward from the blocked vessel like a growing blackout. People may suddenly lose speech, vision, movement, or awareness without warning, often collapsing as critical brain areas shut down. Most ischemic strokes are caused by blood clots. These clots often form on rough fatty plaques inside arteries that have narrowed over many years. When the clot seals the vessel completely, blood flow stops abruptly. In other cases, a clot forms inside the heart, especially during irregular heart rhythms, then travels upward and becomes trapped in a smaller brain artery. The blockage creates immediate tissue injury and swelling that worsens over time. Treatment is a race against irreversible brain death. Clot dissolving medicines or mechanical clot removal can reopen the vessel, but only within a narrow time window. Every minute of delay destroys millions of neurons. Even short interruptions can leave permanent paralysis, speech loss, or cognitive damage. Fast recognition and emergency care determine whether the brain survives or suffers lasting injury. #science #biology

Doctor ASKY

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Thursday 25 June 2026 17:10:00 GMT