<s>[INST] What is transient Ischemic attack? [/INST] Transient Ischemic Attack (TIA) is a temporary stroke caused because of transient (temporary ) blockage in the blood vessels
Some of the clots dissolve on their own while some don't. Scientists don't know the precise reason behind this. Generally, clots that exist for longer period of time, do not dissolve easily.
It is commonly referred as mini stroke
Average time period of TIA is one minute, while some of them last for over three-five minutes
This stroke serves as warning and one must take it very seriously
TIA does not cause permanent injury to the brain Source: MEDIFEE. Link: https://www.medifee.com/faq/stroke#4. Field: Neurology. Disease: Stroke </s>