Infrared saunas have gone mainstream, but most people still don't know how they work. In this episode, Jeff talks with Connie Zack, co-founder of Sunlighten, about the science behind infrared light therapy: why it penetrates the skin differently, what it does to your mitochondria, and how consistent use supports whole-body health. We cover: The differences between far, mid, near infrared, and red light Impacts on cardiovascular health, detoxification, and brain function Importance of HRV, circadian rhythm, and nervous system regulation Beginner protocol: where to start and what to avoid Visit https://www.sunlighten.com/commune/ and get up to $2,100 off saunas + FREE shipping through April 14 + an additional $50 off Red Light Products with code COMMUNE This episode was made possible by: Sunlighten:  Visit sunlighten.com/commune  Up to 2,100 off saunas and $50 off Red Light Products with code “COMMUNE” Bon Charge: Get 15% off when you order at boncharge.com and use promo code COMMUNE Stemregen: Get 20% off your first order at stemregen.co/commune with the code COMMUNEPOD Vivobarefoot: Try Vivobarefoot risk-free with a 100-day return guarantee, and get 15% off your order at vivobarefoot.com/commune. Beyond Biohacking: Save $400 on any ticket with code COMMUNE400 at beyondconference.com.