05/01/2026
A stroke can happen suddenly, but understanding the causes and warning signs can save a life.
Most strokes occur when blood flow to the brain is blocked, often by a blood clot or buildup of plaque in an artery. Others happen when a weakened blood vessel ruptures and bleeds into the brain. Conditions like high blood pressure, irregular heart rhythm, high cholesterol, uncontrolled diabetes, smoking and heavy alcohol use can increase stroke risk. Still other strokes occur without an apparent cause and may act as a warning that a bigger stroke is possible.
If you notice any of these signs, don’t wait. Act fast and call 911 immediately.