Tanya Lewis on Muck Rack

Tanya Lewis

Verified
New York
As seen in: Scientific American, Apple Podcasts, Yahoo Entertainment, Business Insider, Business Insider Singapore, Fox News, HuffPost, The Independent (UK), Yahoo News, Aol, CBS News and
Senior Editor, Health and Medicine @SciAm. No longer active on this site. On Bluesky @tanyalewis.bsky.social
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Articles

The biological dogma that women don't make new eggs after birth may be wrong

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By Claire Cameron Verified, Tanya Lewis Verified
| Scientific American Verified
Female mammals have long thought to be born with all the eggs they would ever have, but new research is challenging that consensus For the past 70 years scientists have taught us that female mammals are born with a finite ovarian egg supply , and that this reserve steadily declines over the lifespan. In humans, that supply dwindles until menopause, when it goes bankrupt. Yet a growing body of research is challenging that dogma.
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How Becoming a Dad Changes Men’s Brains

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By Tanya Lewis Verified
| Portside
How Becoming a Dad Changes Men’s Brains Published June 22, 2026 Father’s Day is an opportunity to recognize the efforts of dads everywhere. But becoming a father is more than just a lifestyle change—it alters one’s brain, too. Scientific American spoke with Devika Bhushan, a public health physician and adjunct faculty member at Stanford University School of Medicine, who studies gender norms, about the ways in which fatherhood affects men’s brains and the mental health struggles dads face.
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Scientific American

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By Tanya Lewis Verified, Andrea Thompson Verified, Rachel Feltman, Sushmita Pathak Verified, Alex Sugiura
| Scientific American Verified
What's going on with the Ebola outbreak, how the World Cup is dealing with rising temperatures, and how becoming a father can change your brain Rachel Feltman: Happy Monday, listeners, Happy Pride and Happy Knicks in Five! For Scientific American 's Science Quickly , I'm Rachel Feltman. You're listening to our weekly science news roundup. Let's start with an update on Ebola.
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