A transient ischemic attack, often referred to as a "mini stroke," is an event that's similar to a stroke. When a person has a TIA, the symptoms are just like those of a stroke, but they last less than 24 hours before disappearing. However, that disappearance does not mean a person is in the clear, as a TIA is a serious warning sign of stroke. According to the National Stroke Association, up to 40 percent of people who experience a TIA will go on to have an actual stroke, and studies have shown that nearly half of all strokes occur within a day or two of having a TIA. But even those people who do not have a stroke within 48 hours of having a TIA are still at risk of having a stroke. In fact, 10 to 15 percent of people who have a TIA will have a stroke within three months. Symptoms of a TIA are sudden and may include confusion; difficulty speaking or understanding; numbness or weakness of the face, arm or leg, particularly on one side of the body; vision trouble in one or both eyes; trouble walking; dizziness; and/or loss of balance or coordination. Interrupted blood flow to the brain is often behind a TIA. A lack of blood and oxygen in the brain often leads to the temporary symptoms described above. Should you or a loved one exhibit any of the aforementioned symptoms, seek medical help immediately, even if the symptoms feel or appear as if they are subsiding. A quick response might just prevent a full-on stroke.