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A persistent or unusual headache can sometimes be an early signal of problems with blood flow to the brain. Unlike common headaches, these may appear suddenly and feel more intense than usual.
In some cases, headaches linked to stroke risk may be accompanied by dizziness, nausea, or sensitivity to light. While headaches can have many causes, a new pattern of frequent headaches should never be ignored, especially if you do not normally experience them.
2. Numbness or Weakness on One Side of the Body
One of the most common early warning signs is temporary numbness or weakness in the face, arm, or leg, usually affecting one side of the body.
Some people describe the feeling as their arm becoming unusually heavy or their face feeling partially numb. These symptoms may disappear after a few minutes or hours, but they can signal reduced blood flow to certain areas of the brain.
3. Difficulty Speaking or Understanding Words
Another important signal is sudden trouble speaking clearly. You may notice slurred speech, difficulty finding the right words, or confusion when trying to understand others.
Even if these symptoms last only a short time, they can indicate a temporary disruption in brain function, which sometimes occurs before a major stroke.