An uneven smile
* Facial numbness
* Difficulty controlling one side of the face
Facial drooping is one of the key signs in the B.E. F.A.S.T. stroke-recognition method.
## 3. Sudden Trouble Speaking
Stroke can affect the parts of the brain responsible for language.
A person may suddenly:
* Slur their speech
* Use incorrect words
* Struggle to speak
* Be difficult to understand
* Have trouble understanding what others are saying
Ask the person to repeat a simple sentence. If their speech is suddenly abnormal, seek emergency help.
## 4. Sudden Vision Changes
