People have been declared legally dead, only to wake up at various points past it, such as the morgue, during autopsy, in the casket without an autopsy, already buried.
That seems to be specifically about heart failure. I think they declare the patients dead not because their brain is dead, but because their heart stopped so the brain will die anyways. So if the heart restarts they come back from dead
Recently?
How recent do you expect it to be? Here’s an article. Activate reader/text mode. https://www.medicalnewstoday.com/articles/317645
How accurate it is, dunno. Just searched for one at random.
That seems to be specifically about heart failure. I think they declare the patients dead not because their brain is dead, but because their heart stopped so the brain will die anyways. So if the heart restarts they come back from dead