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5 Warning Signs of a Stroke Everyone Should Know


A stroke is a medical emergency that occurs when blood flow to the brain is disrupted, either by a blockage (ischemic stroke) or a ruptured blood vessel (hemorrhagic stroke). Quick action can minimize brain damage and improve outcomes, so recognizing the signs is essential.

According to the Centers for Disease Control and Prevention (CDC) and the American Stroke Association, here are five key stroke warning signs to watch for:

1. Sudden Numbness or Weakness

Stroke often causes sudden numbness or weakness in the face, arm, or leg—especially on one side of the body. You may notice:

  • Drooping on one side of the face
  • Trouble lifting one arm
  • Numbness in a limb

These symptoms can come on quickly and without any pain, making them easy to overlook.

Source: CDC – Stroke Signs and Symptoms

2. Confusion or Trouble Speaking

People having a stroke may suddenly have trouble speaking clearly, forming sentences, or understanding others. This can sound like slurred or nonsensical speech.

Source: American Stroke Association – Stroke Warning Signs

3. Vision Problems

Sudden changes in vision are also common. These may include:

  • Loss of vision in one or both eyes
  • Blurred or double vision
  • Trouble seeing to one side

These symptoms may be subtle or severe.

Source: Mayo Clinic – Stroke Symptoms

4. Difficulty Walking or Loss of Balance

Loss of coordination, dizziness, or trouble walking can be signs of a stroke, particularly if combined with other symptoms. A stroke can impair the brain's ability to control balance and movement.

Source: CDC – Stroke Signs

5. Sudden Severe Headache

A sudden, intense headache with no clear cause—especially if it’s unlike any headache you’ve had before—can signal a hemorrhagic stroke. This may be accompanied by vomiting, vision loss, or loss of consciousness.

Source: Mayo Clinic – Stroke Symptoms

The F.A.S.T. Test

Health experts recommend the F.A.S.T. acronym to help quickly identify a possible stroke:

  • Face drooping
  • Arm weakness
  • Speech difficulty
  • Time to call emergency services

Acting quickly improves chances of recovery and survival.

Source: American Stroke Association – F.A.S.T. Warning Signs

Final Thoughts

If you or someone else is showing signs you may be about to have a stroke, call emergency services immediately. Time is critical. Prompt treatment can prevent long-term disability or even save a life.

For ongoing care or evaluation, you can visit a local stroke clinic or consult a primary care provider about stroke risk and prevention strategies.

Sources: Centers for Disease Control and Prevention (CDC), American Stroke Association (ASA), Mayo Clinic