04/24/26

Your DNA is constantly mutating, and that’s a good thing

16:30 minutes

A row of white dice with small DNA illustrations. One red die with DNA is offset from the line.
Credit: Shutterstock

Our bodily systems are rife with mutations. In fact, your DNA is mutating right now. These errors, and attempts to repair them, are a key to understanding immune function, aging, and even how heart disease develops. Gene mutations can even mitigate the harm caused by some inherited diseases. 

Host Ira Flatow goes on a journey through the illuminating science of genetic mutations with Roxanne Khamsi, science writer and author of “Beyond Inheritance: Our Ever-Mutating Cells and a New Understanding of Health.”


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Segment Guests

Roxanne Khamsi

Roxanne Khamsi is a science writer based in Montreal, Quebec.

Segment Transcript

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About Ira Flatow

Ira Flatow is the founder and host of Science FridayHis green thumb has revived many an office plant at death’s door.

About Shoshannah Buxbaum

Shoshannah Buxbaum is a producer for Science Friday. She’s particularly drawn to stories about health, psychology, and the environment. She’s a proud New Jersey native and will happily share her opinions on why the state is deserving of a little more love.

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