A stroke occurs when blood flow to part of the brain is disrupted, leading to damage of brain cells due to lack of oxygen and nutrients. Symptoms can include sudden numbness or weakness in the face, arm, or leg (especially on one side of the body), confusion, trouble speaking or understanding speech, severe headache, dizziness, or loss of balance and coordination. Immediate medical attention is crucial to minimize brain damage and potential long-term disabilities. Treatment may involve medication to dissolve clots or surgery to remove blockages. Rehabilitation and lifestyle changes help in recovery and reducing the risk of future strokes.