Stroke occurs due to a decrease or blockage in the brain’s blood supply. A person experiencing a stroke needs immediate emergency treatment.
A stroke occurs when a blockage or bleed of the blood vessels either interrupts or reduces the supply of blood to the brain. When this happens, the brain does not receive enough oxygen or nutrients, and brain cells start to die.
There are three main types:
Ischemic stroke
Hemorrhagic stroke
Transient Ischemic Attack (TIA)
According to the American Heart Association (AHA), the age-adjusted mortality rate for 2017 was 37.6 in every 100,000Trusted Source stroke diagnoses. Doctors have made a great deal of progress in managing strokes, meaning that this mortality rate is 13.6% lower than it was in 2007.
