A few years ago, they did some of these experiments on specifically a pig's brain or pigs brain. They were able to make brain cells come back alive in a very similar way. This was so profound because brain cells are thought to like be really a sensitive to death. We just wanted to make 100% sure that animals would not feel any even potential discomfort.
Death used to be fairly self-evident, but new technologies have forced us to ask: When is someone actually dead? And now, new research is raising a further question: Could death someday be reversible?
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