Stroke is the third leading cause of death in the U.S. and the leading cause of serious long-term disability. Nearly three-quarters of all strokes occur in people aged 65 years or older. The chances of having a stroke double each decade after the age of 55.

Timing is crucial in lowering the risk of disability or death in a stroke. If you suspect someone is having a stroke call 911 or emergency medical services immediately. Here are 5 major signs of a stroke , according to the American Stroke association.

SUDDEN

•Numbness or weakness of the face, arm, or leg, especially on one side of the body.

• Confusion, trouble speaking or understanding.

• Trouble seeing in one or both eyes.

• Trouble walking, dizziness, or loss of balance and coordination.

• Severe headache with no known cause.