Perhaps the most persistent prediction in the futurist documentary series Futurama is that humans will outlive our bodies by adopting the brain-in-a-jar form factor.  In the show, the main purpose is to enable satire targeting familiar celebrities, despite the 30th century setting.  However, it raises an important question: Would it be possible to decouple our brains from our bodies?  Or are neurons (brain cells) limited to the same intrinsic life span as the biological machinery that hosts them?
A new study 

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