Signs of stroke

A stroke spreads like a fire in the brain. This is how you detect a stroke using the F.A.S.T

technique:
F. Face, has their face fallen of one side - can they smile?
A. Arms, can they raise both arms and keep them there?
S. Speech, if their speech slurred?
T. Time, Just like to fire, if you spot any one of these symptoms, it's time to call 911, 999 or 112

(or your particular emergency number).