The document discusses telomeres and their role in cellular aging. It notes that telomeres are repetitive sequences at the end of chromosomes that shorten with each cell division until they reach a critical length. When telomeres become too short, cells can no longer divide and enter a permanent non-dividing state known as senescence. The document suggests that measuring telomere length could provide insights into biological age and strategies to protect telomeres may help delay the effects of aging.

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Telomere repeat
celldivisions
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