
Science fiction writers have long concocted farfetched schemes to achieve the Holy Grail of eternal youth. But although the quest for immortal life may be tantalizing onscreen, it’s not exactly probable in real life.

Science fiction writers have long concocted farfetched schemes to achieve the Holy Grail of eternal youth. But although the quest for immortal life may be tantalizing onscreen, it’s not exactly probable in real life.