News summary

Can semaglutide slow aging?

Source: Peter Attia Blog • Published: 19 Sept 2026, 11:00

Summarized by Masters of Longevity from Peter Attia Blog.

This piece previews a science-focused article examining whether a late-life diabetes drug could influence aging in mice, inviting curiosity about study design and implications.

Can semaglutide slow aging?
Key Takeaways
  • Female mice started on clinically scaled semaglutide late in life showed a median lifespan of 834 days versus 742 days for controls.
  • Semaglutide-treated mice ate about 24% less, lost primarily fat mass, and had proportionally larger gastrocnemius muscle.
  • Control cohort lifespan was shorter than many historical reports, so findings require replication in independent cohorts and sexes.
Read the full article at Peter Attia Blog

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