The claim “your body warns you a month before a stroke” is a common online headline, but it is misleading. A stroke can happen suddenly, and there is no guaranteed set of symptoms that appears exactly one month beforehand. However, some people may experience warning signs or risk signals before a stroke, especially with a transient ischemic attack (TIA) (“mini-stroke”), which can occur hours, days, or sometimes longer before a major stroke.
Possible warning signs that should not be ignored:
- Sudden weakness or numbness in the face, arm, or leg—especially on one side of the body
- Sudden trouble speaking, slurred speech, confusion, or difficulty understanding words
- Sudden vision changes in one or both eyes
- Sudden dizziness, loss of balance, or trouble walking
- Sudden severe headache with no known cause
- New or worsening episodes of confusion or disorientation
- Brief episodes of stroke-like symptoms that go away (possible TIA)
- Difficulty swallowing or sudden facial drooping
- Loss of coordination or unusual clumsiness
- New symptoms in people with stroke risk factors (such as high blood pressure, atrial fibrillation, diabetes, smoking, or high cholesterol)
A simple way to remember urgent stroke signs is FAST:
