Podcast description: neural stem cells, quiescent versus senescent cells and aging

Are stem cells used for ‘better aging’ a fairytale future or a near reality? This conversation lays out what stem cell therapies actually are, where today’s methods stand, and where the legitimate research is actually headed. Our guest Dr. Darcie Moore, PhD, studies neural stem cells in the adult brain at the University of Wisconsin–Madison, a lab internationally known for stem cell research. Stem cells are what keep tissue regenerating throughout life, replenishing it, repairing it, and keeping it functionally young. As we age, that capacity declines, and the effects show up across the body: slower wound healing, weaker skeletal muscle, a blunted immune response, and cognitive decline. Understanding how to protect or restore aging stem cells means understanding both halves of the problem, not just how they age, but what keeps them young in the first place. Dr. Moore's lab studies the exact opposite question: what keeps the stem cells that could make new neurons stuck in a dormant, "quiescent" state, and what it would take to safely wake them back up. IN THIS EPISODE YOU'LL LEARN: • What a stem cell actually is, and why not all stem cells are created equal • How scientists "erase" a cell's identity and turn it back into a stem cell • Why 3D-printing a working organ could still be years away (the surprising reason involves your immune system) • The real difference between a dormant ("quiescent") cell and a "zombie" (senescent) cell • Why human cloning is not possible with current stem cell science — and what is actually happening instead • The two things proven to boost brain cell growth — and the two proven to shut it down • Her blunt take on stem cell clinics, and what she would and would not inject into her own body • The truth about popular stem cell ‘therapies’ and the very real dangers associated with them Want to learn more? Each month, we send a newsletter curated by our scientific council on what's actually advancing the science of human longevity — and what isn't. Subscribe at https://www.thewndrlab.com/mailing-list Check out The WNDR Lab Connect with Dr. Darcie Moore Connect with our host Chris Wharton Follow The LIVING Room Podcast on Socials: Instagram: https://www.instagram.com/the.living.room.pod/ TikTok: https://www.tiktok.com/@the.living.room.pod LinkedIn: linkedin.com/company/wndrlab/ The WNDR Lab: https://www.thewndrlab.com/ The views, opinions, and stories Chris Wharton shares on The LIVING Room are his own and don't necessarily reflect the official positions of The WNDR Lab. This podcast is a space for candid, personal conversation and not company communications. Nothing said here constitutes medical advice, a statement of clinical efficacy, or an official company claim about our products or outcomes. Subscribe for new conversations every week, and drop your answer to our pinned question below. We read every one! Timestamps 0:18 — What a stem cell actually is, from scratch 1:28 — Turning your own skin cells into neurons with your exact disease mutation 5:43 — The stem cells already living in your body right now 8:34 — How scientists erase a cell’s identity back to its stem state 10:40 — The “baby bird of himself” biohacker claim — and why it’s not real 12:57 — Why cloning a human is still not possible 16:06 — Her rule for any bold science timeline: add 20 years 20:45 — The exact moment of her biggest research discovery 28:29 — The 100-year fight over whether adult brains make new neurons 32:43 — She grew real human brain stem cells from patient tissue — in a dish 33:25 — The two things proven to boost brain cell growth (and the two that shut it down) 39:45 — Quiescent vs. senescent: “dormant” vs. a literal “zombie cell” 45:24 — “Hype is a real thing” — her warning on overclaiming 1:10:54 — What it actually takes to get a research grant funded 1:14:26 — Dr. Moore's warning on stem cell clinics ──────────────────────────────────── Show Notes: A quick clarification from our conversation: when we talked about cooling and spinal cord injury, the example I meant to reference was the case of Kevin Everett of the Buffalo Bills. His early treatment included an experimental cold‑saline IV infusion started by the team physician about fifteen minutes after impact, with continued cooling in the hospital to help limit swelling and tissue damage. This approach was inspired by research from The Miami Project to Cure Paralysis. Separately, the University of Miami football program uses cooling chambers and cryotherapy for general athlete recovery — a different kind of “cooling” altogether. Just wanted to make that distinction clear for listeners. Lab site: dlmoorelab.com Shinya Yamanaka. nobelprize.org/prizes/medicine/2012/yamanaka James Thomson morgridge.org/profile/james-thomson Santiago Ramón y Cajal Nobel biography: nobelprize.org/prizes/medicine/1906/cajal neuro.wisc.edu waisman.wisc.edu alleninstitute.org neurorestore.swiss Icloning/organoid ethics. isscr.org wicell.org