A transient ischemic attack (TIA) is a temporary period of symptoms similar to those of a stroke. It occurs when there is a temporary decrease in blood flow to a part of the brain, often due to a blood clot. Symptoms can include sudden weakness, numbness, or difficulty speaking, but they typically resolve within a few minutes to hours. TIAs are important warning signs for potential future strokes and should be taken seriously. They often indicate underlying issues such as atherosclerosis or high blood pressure. Prompt medical evaluation can help reduce the risk of a more serious stroke in the future.