<s>[INST] What should I do if I think someone is having a stroke? [/INST] A stroke should be treated as a medical emergency, similar to a heart attack. It is very important to remain calm but to react quickly if someone you're with seems to be having a stroke. The longer you wait, the more likely that further damage to the brain will occur. You should immediately call 9-1-1 or an emergency service. Even if the person appears to "recover" do not hesitate to call for help. Brain damage can continue to occur for several hours after an attack, so the earlier the stroke victim receives treatment, the better. Source: EMORY HEALTH CARE. Link: https://www.emoryhealthcare.org/centers-programs/brain-health-center/treatments/stroke-faqs#:~:text=Am%20I%20at%20risk%20for,compelling%20reason%20to%20quit%20smoking.. Field: Neurology. Disease: Stroke </s>