Metformin, the Big New "Anti-Aging" Drug, Explained, , 8 min
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Image: Cleo Abram / YouTube
Metformin is an old, cheap diabetes drug – and now some wealthy people are taking it in hopes of living longer. Cleo Abram talks to Dr. Nir Barzilai, who leads the biggest study on it: can a pill that costs pennies really slow down aging?