How is a brain stroke different from brain dead and coma?
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A stroke is when a blood clot (scab) blocks some blood flow in your brain; it starves the blocked area of blood and you get local damage/death of cells, but it’s not big enough to take out your whole brain (usually). The rest of the brain keeps working.
Coma is when you’re unconscious and won’t wake up. That may or may not involve brain death. You can still have brain activity while in a coma.
Brain death is when “all” the electrical activity of the brain quits. The parts of the brain that matter to think are dead.
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