When a blood vessel in the brain bursts and bleeds, or when there is a blockage in the blood flow to the brain, a stroke occurs. This happens as the brain does not get enough oxygen and nutrients – brain cells begin to die.
A stroke is categorised as a cerebrovascular disease. This indicates a stroke affects the blood arteries that supply oxygen to the brain. Brain damage may occur when it does not receive enough oxygen.
Stroke is a medical emergency because the brain is such a complicated organ that regulates so many body systems.If a stroke happens and blood supply is cut off to the area of the brain that regulates a certain physiological function, that part of the body will not operate properly. Although many strokes may be treated, some might result in disability or death. As a result, seeking treatment early can help to prevent brain damage and other complications from happening.