A new gene-sequencing project aims to find out what makes people tick well into their 90s and 100s. The project, called Methuselah, will be carried out at the Rothberg Institute in Guilford, Conn., and will analyze the genomes of 100 people over the age of 100 to try to determine what variations may lead to longevity. Scientists will sequence the genomes using a streamlined methodology that makes the process more efficient.

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