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For Two Sisters, a β€œBiological Age Test” Measured More Than Their DNA

They thought it might explain why their health had diverged. Instead, it stirred up feelings that weren’t so easily quantified.

Β© Vivian Dehning; photographs by Annie Flanagan for The New York Times

Jonathan the Giant Tortoise Is 194 Years Old. He Just Had His Genome Sequenced.

8 October 2026 at 15:06
Scientists have sequenced his genome for the first time, hoping the world’s oldest land animal can offer clues into the genetics of longevity.

Β© Gianluigi Guerica/Agence France-Presse β€” Getty Images

Early Data Indicates an A.I.-Generated Drug Could Slow Aging

7 September 2026 at 11:12
Artificial intelligence was used to help develop a drug candidate, rentosertib, for a rare lung condition. Its maker says the drug also seems to reduce the biological hallmarks of age.

Β© Laurie Chen/Reuters

Rentosertib, Insilico Medicine’s small-molecule drug candidate developed and designed using generative A.I. for treating chronic lung disease, at the company’s research and development facility in Shanghai.

Early Data Indicates an A.I.-Generated Drug Could Slow Aging

7 September 2026 at 11:12
Artificial intelligence was used to help develop a drug candidate, rentosertib, for a rare lung condition. Its maker says the drug also seems to reduce the biological hallmarks of age.

Β© Laurie Chen/Reuters

Rentosertib, Insilico Medicine’s small-molecule drug candidate developed and designed using generative A.I. for treating chronic lung disease, at the company’s research and development facility in Shanghai.
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