This lecture explores the anatomy and physiology of stroke and the need for awareness and tools for prevention. A stroke happens when the blood flow to a part of the brain is suddenly blocked or when a blood vessel in the brain bursts. Without blood and oxygen, brain cells begin to die within minutes. This makes stroke a medical emergency, and quick action can save brain function and even save a life.
The good news is that many strokes are preventable. Managing blood pressure, staying active, eating well, not smoking, and recognizing early warning signs can greatly lower risk. Understanding what a stroke is, how it occurs, and what we can do to prevent it helps us take control of our health as we age.