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Celebrate with us as we honor two decades of breakthroughs, cross-cultural exchange, and world-changing research.

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This podcast is supported by the Icon School of Medicine at Mount Sinai,

the academic arm of the Mount Sinai Health System in New York City,

and one of America's leading research medical schools.

What are researchers on heart health working on to transform patient care and prolong lives?

Find out in a special supplement to Science magazine prepared by the Icon School of Medicine at Mount Sinai in partnership with science.

Visit our website at www.

at www.science.org and search for Frontiers of Medical Research, dash heart.

The Icon School of Medicine in Mount Sinai, we find a way.

This is the science podcast for August 14, 2025.

I'm Sarah Crespi.

First this week, producer Megan Cantwell and

contributing correspondent, Sarah Reardon, discuss alternative approaches to animal testing,

from a heart on a chip to a mini organ in a dish. Next on the show, expert voices columnist

Melanie Mitchell digs into artificial intelligences lies.

Why do chatbots fabricate answers and pretend to do math?

Melanie describes the stress tests large language models undergo, called red teaming,

and the steps needed to better understand what's going on inside these models.

...