At the end of a chromosome, there's a protective tip called a telomere that wears away over time; understanding that is the key to understanding aging.
The Fountain of Youth may have just been discovered, not in a Florida spring, but in a murky Australian pond. Far from myth, the findings of Nobel Prize-winning scientist Elizabeth Blackburn, an enzyme that can keep cells young, may just prove to be the key to immortality. Join us as we track Blackburn and molecular biologist Carol Greider's decades-long journey to fully understand this enzyme, which is both amazing and paradoxical, for while it may prove to be an elixir of endless life, it also has the power to kill.
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