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06:14 Menopause brings sudden body-wide changes, not a slow slide, study says✦11:51 Putting force on old mice's leg bones helped them live about 9% longer✦06:17 Stem cell implants helped 9 Parkinson's patients move better, maker says✦05:42 Siblings born deaf respond to sounds after a newly approved gene therapy✦06:20 US gives up to $41M to test existing drugs for preventing Alzheimer's✦06:18 80-year-old's blood cells become brain stem cells that test under age 20✦05:46 Pill meant to help older dogs live longer is one FDA step from approval✦11:54 Cold helps worms live longer via a chemical their muscles send out✦06:14 Menopause brings sudden body-wide changes, not a slow slide, study says✦11:51 Putting force on old mice's leg bones helped them live about 9% longer✦06:17 Stem cell implants helped 9 Parkinson's patients move better, maker says✦05:42 Siblings born deaf respond to sounds after a newly approved gene therapy✦06:20 US gives up to $41M to test existing drugs for preventing Alzheimer's✦06:18 80-year-old's blood cells become brain stem cells that test under age 20✦05:46 Pill meant to help older dogs live longer is one FDA step from approval✦11:54 Cold helps worms live longer via a chemical their muscles send out
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Noah Snyder-Mackler

Professor, School of Life Sciences, Arizona State University

Genomicist at Arizona State University's School of Life Sciences and Center for Evolution and Medicine. Senior author of a 2026 Science study, using Dog Aging Project data, that linked faster DNA aging marks to the shorter lives of large dogs.

dog agingdna methylationaging clocksjumping genes

WHAT TO WATCHFollow-up work testing whether the DNA changes seen in large dogs can be tracked over time or changed before disease appears.

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Every story about Noah’s work.

Profile sources

  1. 1
    Small Dogs Tend to Live Longer Than Big Dogs. Scientists Say They Might Finally Know Why—and It Goes to the Molecular Level Smithsonian Magazine
  2. 2
    Fading control over 'jumping genes' may explain why big dogs age faster Phys.org