A stroke occurs when the blood supply to part of the brain is interrupted or reduced, depriving brain tissue of oxygen and nutrients. It can result from a blocked artery (ischemic stroke) or a ruptured blood vessel (hemorrhagic stroke). Symptoms include sudden numbness or weakness in the face, arm, or leg, especially on one side of the body, confusion, trouble speaking or understanding speech, difficulty walking, dizziness, and severe headache. Immediate medical attention is crucial to minimize brain damage and potential long-term disability. Rehabilitation and lifestyle changes often follow to manage stroke effects and reduce the risk of recurrence.