There are two types of stroke: ischemic, which results from blockages or blood clots, …and hemorrhagic, caused by ruptures of blood vessels.
It's estimated that more than 80 percent of strokes are ischemic.
The number of stroke patients begins to rise from October, when cold weather begins, and it peaks in January.
Strokes usually happen suddenly, …which is why it's important to go to a major hospital and get treated as soon as symptoms appear.
Depriving the brain tissue of the necessary oxygen and nutrients for more than six hours can cause brain cells to die.
"Medication can be injected to quickly unclog blood vessels. Mechanical thrombectomy is a procedure in which a machine removes a blood clot from a blood vessel."
The time it takes to get to the hospital often determines a stroke patient's state after treatment.
The first three hours after the onset of a stroke is considered the golden time.
Those treated within 90 minutes can reduce the chance of recurrence by about 25 percent.
To prevent strokes, it's important to try to lower blood pressure and cholesterol levels as well as manage diabetes.
People should also quit smoking, drink less …and exercise.
Park Se-young, Arirang News.