If you've ever wondered whether your sleep tracker is actually accurate, or whether meditation is doing anything measurable in your brain, this episode is for you. Ariel Garten is the co-founder of Muse, the brain-sensing headband, and she's back on the show with a significant update on how the technology has evolved. The Muse Athena contains an entirely new technology called fNIRS that tracks real-time blood flow and oxygen delivery to your prefrontal cortex. We get into why wrist-based devices like Oura and Apple Watch can only ever estimate your sleep stages - because they're guessing from heart rate and movement, not brainwave data, whereas the Muse measures deep sleep at 94% accuracy compared to a clinical sleep lab. It's Deep Sleep Boost feature uses barely-audible pink noise pulses to increase the amount of time you spend in deep, restorative slow-wave sleep. We also go into ADHD territory. Both Ariel and I are diagnosed, and we talk about what neurofeedback and meditation training can do for focus, executive function, and the near-constant urge to abandon tasks halfway through. What you'll learn Why wrist-based sleep trackers can't accurately measure deep sleep, and how EEG-based tracking changes the pictureWhat deep sleep actually does for your brain and body - and why it matters for memory, cognitive function, and reducing the risk of Alzheimer'sHow the Deep Sleep Boost feature uses tiny pink noise pulses synced to your delta waves to deepen your sleep (and why your bed partner won't even hear it)What your alpha peak frequency is, why it tends to decline with age, and how you can track and potentially maintain it through neurofeedbackWhat fNIRS technology is and why training your prefrontal cortex to demand more oxygen could be important for long-term brain healthHow Muse's neurofeedback and meditation tools can support focus, attention, and executive function - and what this means if you have ADHDThe full range of content in the Muse app, including over 500 guided sessions covering sleep, stress, relationships, focus, and moreHow the app's AI assistant, ENSO, can help you interpret your data, track trends over time, and find the right tools for your goalsResources mentioned Muse headband: www.choosemuse.com/ (enter code cassdunn at checkout for 15% off) Previous episode with Ariel Garten (2019) https://www.crappytohappypod.com/wearable-technology-for-your-brain-with-ariel-garten/ Beyond Confident 2.0 for Solopreneurs & Service Providers Open for enrolment NOW. Transform self-doubt & self-sabotage, rewire your nervous system for success, and do the inner healing work, while being supported to create a streamlined, profitable business that supports your lifestyle. Save $1000 with Founding Member Pricing. www.cassdunn.com/bc2 Connect with Cass: www.cassdunn.com www.instagram.com/cassdunn_xo Contact Crappy to Happy: Email: hello@crappytohappypod.com www.crappytohappypod.com www.instagram.com/crappytohappypod