For decades, medicine has treated memory loss, brain fog, and neurodegenerative disease as inevitable — but what if the real battle is happening at the cellular level, inside your brain's own immune system? In this episode, six-time New York Times bestselling author and neurologist Dr. David Perlmutter joins Dr. Amen & Tana to unpack the findings from his groundbreaking new book, Brain Defenders. We explore microglia — the brain's immune cells that can act as either warriors of protection or agents of destruction, depending on how we live. Dr. Perlmutter breaks down the overlooked role of inflammation in conditions ranging from dementia to long COVID, and lays out practical, evidence-based strategies to counter threats like poor diet, environmental toxins, and lack of restorative sleep. If you've ever wondered whether cognitive decline is truly inevitable — or whether you have more control over your brain's future than you think — this conversation will change how you think about aging, disease, and prevention. Purchase Brain Defenders: https://a.co/d/00qR4E3Y  @DavidPerlmutterMD  Want to schedule a visit? Our highly trained specialists can guide you through the process so you and your loved ones can get the help you deserve. https://www.amenclinics.com/schedule-visit/ SUBSCRIBE FOR MORE BRAIN HEALTH NEWS & TIPS https://www.youtube.com/subscription_center?add_user=amenclinic If you or someone you know would like more information about Amen Clinics, please call us or visit https://www.amenclinics.com/schedule-visit/. Within the U.S. call 1-888-412-2713 Outside the U.S. call 1-949-266-3700 http://www.amenclinics.com/ https://www.brainmdhealth.com/ Follow Amen Clinics on Instagram: https://www.instagram.com/amen_clinics/ Follow Amen Clinics on TikTok: https://www.tiktok.com/@amenclinics Like Amen Clinics on Facebook: https://www.facebook.com/AmenClinic Follow Amen Clinics on Twitter: https://twitter.com/Amen_Clinics Follow Amen Clinics on LinkedIn: http://bit.ly/AmenClinicsLinkedIn Follow Dr. Daniel Amen on Instagram: https://www.instagram.com/doc_amen/ Follow Dr. Daniel Amen on TikTok: https://www.tiktok.com/@docamen Like Dr. Daniel Amen on Facebook: https://www.facebook.com/drdanielamen Follow Dr. Daniel Amen on Twitter: https://twitter.com/docamen