Here’s the scary part: a person in the middle of a stroke can look almost completely normal. They might just seem confused, or tired, or like something’s a little off. That’s why so many strokes get missed until real damage is done.
Blood flow to part of the brain is being cut off, and every minute matters. So there’s a simple test anyone can do — no medical training required. It’s called FAST, and here’s what it stands for:
F — Face. Ask the person to smile. Does one side of their face droop? An uneven smile is a red flag.
A — Arms. Ask them to raise both arms at the same time. Does one arm drift downward when they try to hold them up?
S — Speech. Ask them to repeat a simple phrase. Is their speech slurred or hard to understand? Does something about it sound strange or off?
T — Time to call 911. If you see any of those signs, call 911 immediately. Don’t wait to see if it gets better. Don’t drive them yourself. Call.
You don’t need all three warning signs to be present. One is enough to act. And acting fast is the whole point — the longer a stroke goes untreated, the more brain cells die and the worse the permanent damage can be.
These aren’t the only possible signs of a stroke — sudden severe headache, vision problems, or numbness on one side of the body can also be warning signs. But FAST gives you a quick, reliable checklist anyone can use in the moment.
This is one of those things that sounds like adult stuff until it’s your grandparent, your neighbor, or someone at a party who suddenly isn’t acting right. Now you know what to do.