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What No One Tells You about Testosterone Replacement Therapy

What No One Tells You about Testosterone Replacement Therapy

As more men turn to testosterone replacement therapy (TRT) for energy, mood and muscle, experts warn the risks are still not fully understood.

Science Quickly

June 20, 202512m 14s

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Show Notes

Testosterone replacement therapy (TRT) is exploding in popularity among men. TRT has been touted online as a cure-all for everything from low energy to poor mood and even as a way to increase masculinity itself. But how much of the buzz is backed by science? Host Rachel Feltman talks with journalist Stephanie Pappas about the realities behind the trend. They explore who truly benefits from TRT, the overlooked risks—including fertility loss—and the rise of private clinics offering testosterone.


This episode was made possible by the support of Yakult and produced independently by Scientific American’s board of editors.


Recommended reading:

What Most Men Don’t Know about the Risks of Testosterone Therapy


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Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Kelso Harper, Naeem Amarsy and Jeff DelViscio. This episode was edited by Alex Sugiura. Shayna Posses and Aaron Shattuck fact-check our show. Our theme music was composed by Dominic Smith.

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