What an interesting question! There certainly have been horror stories from the past where mad scientists have tried to do this. Thankfully, most science labs are well-regulated making sure things like this do not happen. I don’t think it is possible anyway, sorry to say. Once the brain is switched off, it cannot be turned back on!
I highly recommend reading a book called ‘Frankenstein’ by an author Mary Shelley. It is precisely a fantasy story about a scientist who tries to do this! Give it a read!
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