A stroke is a serious, life-threatening, medical condition that occurs when the blood supply to part of the brain is cut off. Blood carries essential nutrients and oxygen to your brain, and blood supply may be obstructed for various reasons. Without blood, your brain cells can be damaged or die.
Strokes are a medical emergency and urgent treatment can minimise the extent of damage to the brain. Impairments tend to be focused on one side of the body, with the upper limb typically being more affected than the lower limb. In addition, depending on which parts of the brain have been damaged, there are often changes to various aspects of cognitive function.