the likelihood of stroke.
## The Bottom Line
A stroke usually does not provide a predictable advance warning.
Instead, the key is recognizing **sudden changes**: balance problems, vision loss, facial drooping, arm weakness, speech difficulty, numbness, confusion, or an unexplained severe headache.
If any of these symptoms appear, do not wait for all of them to occur and do not wait for them to disappear.
**B.E. F.A.S.T. and seek emergency medical help immediately.** Fast action can protect brain tissue, reduce disability, and save a life.
