Strokes are often described as sudden, catastrophic events—one moment you’re fine, the next your world changes. But here’s what many people don’t know: the body often sends warnings weeks before a stroke happens.

These warnings are called transient ischemic attacks (TIAs) or “mini-strokes.” They’re caused by temporary blockages in blood flow to the brain, and they resolve within minutes or hours. But they are not “just a passing spell.” They are your brain’s desperate attempt to tell you something is terribly wrong.

Ignoring a TIA is like ignoring a fire alarm because the flames aren’t visible yet. Up to 15% of people who have a major stroke experience a TIA first—often within days or weeks beforehand.

Here are 10 signs your body may send in the month before a stroke. If you or someone you love experiences any of these, do not wait. Do not dismiss. Seek medical help immediately.

1. Sudden Numbness or Weakness

This is the most classic stroke warning sign—and it applies to TIAs too.

You might notice:

  • Numbness, weakness, or tingling on one side of the body
  • Difficulty lifting one arm

  • A drooping sensation on one side of the face

What makes it a TIA: The symptoms appear suddenly, last a few minutes to an hour, then completely disappear. The temporary nature makes people think it was “nothing.” It was not nothing.

2. Temporary Vision Loss in One Eye