What can cause a stroke?

A stroke occurs primarily due to issues related to blood flow to the brain, which can be caused by either a ruptured blood vessel or a blood clot. When a blood vessel ruptures, it leads to bleeding in or around the brain, which can damage brain tissue and disrupt the normal functions of the brain. Similarly, a blood clot can obstruct blood flow to parts of the brain, leading to ischemia (lack of oxygen) and resulting in cell death. This interruption of blood supply is critical as it deprives brain cells of necessary oxygen and nutrients, which can quickly lead to significant neurological deficits and potentially life-threatening conditions. Understanding this mechanism highlights the importance of rapid medical intervention in the event of a stroke.