From Live Science:
Scientists have zeroed in on one apparent key to long life: an inherited cellular repair mechanism that thwarts aging and perhaps helps prevent disease. Researches say the finding could lead to anti-aging drugs.
The study involves telomeres, the ends of chromosomes that have been likened to the plastic tips that prevent shoelaces from unraveling. Telomeres were already known to play a key role in aging, and their discovery led to this year's Nobel Prize in medicine.
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