A stroke occurs when blood supply to part of your brain is unterrupted or severely reduced, depriving brain tissue of oxygen and
What is stroke?
A stroke is a
"brain attack". It can happen to anyone at any time. It occurs when blood flow to an area of brain is cut off. When this happens, brain cells are deprived of oxygen and begin to die. When brain cells
die during a stroke, abilities controlled by that area of the brain such as memory and muscle control are lost.
How a person is
affected by their stroke depends on where the stroke occurs in the brain and how much the brain is damaged. For example, someone who had a small stroke may only have minor problems such as temporary
weakness of an arm or leg. People who have larger strokes may be permanently paralyzed on one side of their body or lose their ability to speak. Some people recover completely from strokes, but more
than 2/3 of survivors will have some type of disability.
Stroke By The Numbers
Each year nearly 800,000
people experience a new or recurrent stroke.
A stroke happens every 40
Stroke is the fifth leading
cause of death in the U.S.
Every 4 minutes someone dies
Up to 80 percent of strokes
can be prevented.
Stroke is the leading cause
of adult disability in the U.S.
When blood flow to part of the brain stops for a short period of time, also called transient ischemic attack (TIA), it can mimic stroke-like symptoms. These appear and last less than 24 hours before
disappearing. Learn more about the signs, your risk, and TIA management.