A new study finds that one out of every eight stroke victims has a mild stroke beforehand.
The research, appearing in the journal Neurology, reports that 12 percent of all stroke victims identified over a four-year period in Ontario suffered a transient ischemic attack (TIA)—or mild stroke. A TIA is identified as lasting less than 24 hours and resolving itself.
Those with the warning stroke were typically older than those without warning strokes. They were also more likely to have diabetes, high blood pressure and heart problems. Researchers say it’s possible their blood vessels were "preconditioned to the lack of blood flow, which protected them from the full result of the larger stroke."
Sufferers who did not have a TIA were more likely to have a more serious stroke than those who did have one.
Researchers say all strokes should be treated at an emergency room immediately.
Symptoms of a stroke include trouble walking or speaking, paralysis or numbness on one side of the body, vision problems and headache.
According to WebMD, controlling high blood pressure, lowering cholesterol, maintaining a healthy weight, exercising regularly and managing stress are all things that can be done to reduce the risk of stroke.