Final answer:
A stroke disrupts blood supply to the brain, causing various symptoms, and requires immediate medical attention. Symptoms can be sudden and severe or may resolve quickly, as in the case of a TIA. Long-term effects and recovery depend on the stroke's severity and timely treatment.
Step-by-step explanation:
A stroke is a medical condition that occurs when the blood supply to part of the brain is interrupted, depriving brain tissue of oxygen and nutrients. This can happen due to either a blockage (ischemic stroke) or a burst blood vessel (hemorrhagic stroke). The symptoms of a stroke can vary in onset and severity, depending on the type and area of the brain affected. Common symptoms include muscle weakness or paralysis, speech disturbances, headache, sensory problems, memory loss, and confusion. In some cases, stroke symptoms may resolve quickly, which is characteristic of a transient ischemic attack (TIA), but often they can persist and lead to long-term disability.
Immediate medical attention is crucial when stroke symptoms are observed as timely treatment can significantly improve outcomes and prevent permanent damage. Risk factors for stroke include high blood pressure, diabetes, high cholesterol, smoking, and family history. After a stroke, rehabilitation therapies such as physical, occupational, and speech therapy are important for recovery.