Brain cells need oxygen and nutrients to survive. The blood carries these essential components to the brain. A stroke prevents oxygen and nutrients from reaching the brain.
There are 2 different types of strokes. An ischemic stroke is the most common type. It consists of the same sequence of events as a heart attack. A clot forms in the brain’s blood vessels. Consequently, blood is blocked from reach parts of the brain. A hemorrhagic stroke happens when a blood vessel tears or ruptures. It results in blood in the brain tissue and damage to brain cells. This often happens due to an aneurysm or from high blood pressure.
Most strokes are preventable and can be avoided through lifestyle changes. However, if you notice someone having signs of a stroke, it’s important to get them immediate medical attention. Noticeable signs and symptoms include weakness or numbness in the face or on one side of the body, loss or blurred vision, a sudden headache, or sudden trouble standing or walking.