Ischemic stroke is a medical condition in which blood flow to the brain is blocked, resulting in a lack of oxygen and nutrients to brain tissue. This blockage is usually caused by a blood clot or plaque buildup in the arteries leading to the brain. Ischemic stroke is the most common type of stroke, accounting for approximately 87% of all stroke cases. It can lead to serious brain damage and long-term disabilities if not treated promptly. Research in this area focuses on understanding the causes, risk factors, prevention, and treatment options for ischemic stroke, with the goal of improving outcomes and reducing the impact of this condition on individuals and society.