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TIA or transient ischemic attack is a mini stroke
that happens when the blood supply to brain is temporarily cut off. The episodes last for a maximum of 24 hours and then resolve or a new symptom starts. The symptoms include temporary loss of sensation in any part of the body, black outs, vision loss, tingling, loss of function of a limb etc. It is common in people with high blood pressure, diabetes, peripheral vascular disease, and high cholesterol.