Different areas of the brain are responsible for different functions. These include sensation, movement, sight, speech, balance, and coordination.
The symptoms of stroke vary depending on which area of the brain is damaged. Symptoms can include:
The sudden appearance of one or more of these symptoms is a warning sign that a stroke may be in progress.
In some cases, strokes are preceded by one or more transient ischemic attacks (TIAs). TIAs are brief episodes of stroke-like symptoms. They last less than 24 hours, most commonly for only 5 to 20 minutes.
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