The Coffee & Sleep Lies You Believe: The Surprising Habits That Protect Your Brain for Life with guest expert Dr. David Perlmutter — #70

If you've ever wondered whether your daily habits are quietly protecting your brain, or quietly working against it, this one's for you. Some of the most powerful things you can do for your memory, your focus, and your long-term brain health aren't found in a prescription. They're in your morning coffee, your nightly sleep, and the way you help your body recover every single day.I'm joined by returning guest expert Dr. David Perlmutter, a board-certified neurologist and 6-time New York Times bestselling author, to unpack the real science on the choices that shape cognitive function, metabolism, and longevity. We get into why coffee is so much more than caffeine, how deep sleep literally washes waste out of your brain overnight, why tracking your sleep might be one of the smartest health moves you make, and what the research actually says about infrared saunas, cold plunges, and heart rate variability. It's practical, it's evidence-based, and you can start using it today.What You'll Learn:• Why coffee is far more than caffeine, and the 90-plus bioactive compounds that may help protect your brain• The daily coffee sweet spot, and the "caffeine curfew" that guards your deep sleep• How to choose cleaner coffee: organic, mold-free, water-processed decaf, and why flavored blends are a gamble• Quality over quantity: why "I slept 8 hours" tells you almost nothing about your brain• How deep sleep activates the glymphatic system to wash away waste tied to cognitive decline, and the minimum you should aim for• The everyday habits that quietly sabotage restorative sleep, and why a wearable can help you fix them• What HRV really measures, why higher means more resilient, and simple ways to raise yours• Hot &amp; Cold therapy: What the science says about infrared saunas and cold plunges, and why heat and cold may share the same protective pathways• A crucial caution for breast cancer survivors and anyone at risk for lymphedema before starting heat or cold therapy• The Mouthwash Habit Your Didn't Realize Is Harming You: The surprising connection between your mouth bacteria, mouthwash, blood pressure, and blood sugar• Brain-Boosting Movement: Why exercise acts like medicine, turning your muscles into hormone-producing organs that support your brain...and so much more!About Our Guest Expert:Dr. David Perlmutter is a board-certified neurologist, Fellow of the American College of Nutrition, and 6-time New York Times bestselling author. Recognized as one of the world's leading voices in brain health, he has spent decades translating cutting-edge neuroscience into practical strategies that help people reduce their risk of neurodegenerative disease and support lifelong wellness. He's the author of bestsellers including Grain Brain, Brain Wash, and Drop Acid, with his newest book, Brain Defenders, released in 2026.Connect with Dr. David Perlmutter:Instagram: @davidperlmutterFacebook: Dr. David PerlmutterWebsite: drperlmutter.com_________________________________________Get Cleaner, Regulated, Better Supplements for LessDid your last order of vitamins come off a big online overnight shipping platform but you have no idea how long it was sitting in an overheated warehouse?Or maybe those Omega-3’s you take are actually rancid but you wouldn’t know?That’s why I’m excited to have found a platform that is not only efficacious and 3rd-party lab tested, but also regulated to have the ingredients in them that are on the label!And Fullscript has 100+ brands of supplements you may already be taking…only better. Safer. What your family needs.Yup — your one-stop shop for high-quality wellness and supplement products from brands people actually trust.Better still? I have been able to secure the most awesome discounts for you. Every order. Every day of the year. Even more savings with auto-ship.Whether you’re leveling up your health routine, trying to stay consistent, or just attempting to remember to take your vitamins before 11 PM, Fullscript makes the whole process way easier.✨ Easy online ordering✨ Practitioner-trusted supplement brands✨ Personalized wellness support✨ Delivered straight to your door (because leaving the house is optional)Just click <a href="https://us.fullscript.com/welcome/samanthah