If you mean the claim “A month before a stroke, your body warns you: 10 signs not to ignore,” there is an important distinction: there is no medically established set of 10 symptoms that reliably appears one month before a stroke. A stroke can occur suddenly, without a month-long warning period.

What can happen is a TIA (transient ischemic attack), sometimes called a “warning stroke.” Its symptoms are essentially the same as a stroke but may disappear after minutes or hours. A TIA is an emergency because it can signal a higher risk of a subsequent stroke.
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www.stroke.org
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Warning symptoms you should take seriously

The recognized sudden warning signs include:

Numbness or weakness of the face, arm, or leg—particularly on one side.
Facial drooping, such as one side of the mouth suddenly sagging.
Speech problems—slurred speech, difficulty speaking, or difficulty understanding.
Sudden vision changes in one or both eyes, including loss or double vision.
Sudden dizziness or loss of balance/coordination.
Difficulty walking or suddenly feeling unsteady.
A sudden, severe headache with no obvious cause.
Sudden confusion or difficulty understanding what is happening.
Sudden weakness or clumsiness affecting one side of the body.
Symptoms that disappear after a short time. This does not make them safe; temporary stroke-like symptoms can be a TIA.
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www.stroke.org
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The American Stroke Association summarizes the key signs as B.E. F.A.S.T.: Balance, Eyes, Face, Arm, Speech, Time.
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www.stroke.org
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The most important point

Don’t wait for symptoms to become severe or assume that you have time because they happened days or weeks earlier. If someone suddenly develops facial drooping, one-sided weakness/numbness, speech difficulty, vision loss, severe unexplained headache, or major balance problems, seek emergency medical attention immediately—even if the symptoms go away.
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www.stroke.org
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Also, things such as high blood pressure, diabetes, high cholesterol, smoking, heart disease, and obesity are risk factors for stroke rather than reliable “one month before” symptoms. Controlling these risks can substantially reduce stroke risk.
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CDC Stacks
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If you’re asking because you or someone close to you has recently experienced particular symptoms, tell me exactly what happened (what symptom, when it started, how long it lasted, and whether it went away), and I can help you understand how concerning it is.

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