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<p>In the last year, you’ve basically replaced your body weight in new cells. So yes, it’s a new year, new you. To ring in 2026, we’re talking about starting anew, and drawing inspiration from tiny worms that embody the ultimate growth mindset—they can <a href="https://www.sciencefriday.com/segments/regeneration-biology/?utm_source=wnyc&utm_medium=podcast&utm_campaign=scifri" target="_blank">regrow a whole body</a> from just a tiny piece of their tail. </p><p>In this festive episode, Host Flora Lichtman talks with biologist Alejandro Sánchez Alvarado, a pioneer in the field of regeneration, about the science of regeneration and the biology lessons we can carry into the new year. </p><p>Guest: Dr. Alejandro Sánchez Alvarado is a biologist and president and chief scientific officer of the Stowers Institute for Medical Research in Kansas City, Missouri.</p><p><i>Transcripts for each episode are available within 1-3 days at </i><a href="https://www.sciencefriday.com/segments/regeneration-b...