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(THE CONVERSATION) You’re probably familiar with the TV or movie plot device where a character is conked on the head, loses memory or identity and then gets conked again and memory is restored. Classic examples are in the 1951 Tom and Jerry Cartoon Nit-Witty Kitty and the movie “Clean Slate.”

This “double-conk” myth is so far off from neurological fact that it is laughable to scientists and physicians. It’s never a good idea to hit someone on the head as a cure for any type of conc...