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This provocative episode of NOVA scienceNOW examines whether we can slow down the aging process, looks at the latest on human hibernation, and checks in with bioengineers and a computer scientist inventing ways to keep us "going forever." Neil deGrasse Tyson also takes a lighthearted look at whether the tricks that have kept a 1966 Volvo running for 2.7 million miles can also help the human body go the extra mile.