Final answer:
A person may suffer a stroke, also known as a cerebrovascular accident, when the blood supply to the brain is impaired. Strokes can be ischemic, due to blockages, or hemorrhagic, due to ruptured vessels, and can lead to permanent brain damage. Immediate treatment is critical for the best outcomes, and prevention involves managing risk factors like high blood pressure and cholesterol.
Step-by-step explanation:
When the blood supply to the brain is impaired, a person may suffer a stroke or a cerebrovascular accident (CVA). A stroke can be caused by a blockage in an artery due to a blood clot, fat embolus, or an air bubble. If the brain does not receive enough blood, the deprived tissue can suffer permanent damage or cell death.
The symptoms of a stroke depend on the affected area of the brain and can include the loss of the ability to move or feel on one side of the body, speech difficulties, sensory issues, memory loss, and confusion. There are two main types of strokes: ischemic, caused by blockage or narrowing of vessels, and hemorrhagic, caused by the bursting of a weak blood vessel.
Strokes require immediate medical attention, and depending on the type and timing of the treatment, symptoms can be temporary or permanent. Preventing strokes involves controlling risk factors such as high blood pressure, diabetes, high cholesterol, and avoiding smoking.