Final answer:
A stroke is when blood flow to the brain is interrupted, causing cell death. Recognizing a stroke can be done using the FAST mnemonic, looking for facial weakness, arm weakness, and speech difficulties. Immediate medical attention is crucial and can prevent permanent damage or disability.
Step-by-step explanation:
A stroke occurs when blood supply to part of the brain is interrupted or reduced, preventing brain tissue from getting oxygen and nutrients. Brain cells begin to die in minutes. There are two main types of strokes: ischemic, due to lack of blood flow, and hemorrhagic, due to bleeding. Among the various signs of a stroke, some common ones are difficulties with movement or sensation on one side of the body, speech challenges, and confusion.
The FAST mnemonic is a quick way to identify symptoms of a stroke. Face: Check if the person has difficulty with facial movements like smiling. Arms: Ask the person to raise both arms to see if one arm drifts downward. Speech: Listen for slurring or difficulty speaking. Time: If you observe any of these signs, it's important to call emergency services immediately. Swift action is crucial, as treatments for stroke are most effective when administered early.
Risk factors for strokes include high blood pressure, diabetes, high cholesterol, and smoking. Immediate medical attention can often prevent long-term disability.