Podcast | Infrared Sauna, Longevity, and the Science of Light with Connie Zack

Apr 15, 2026

Or, listen on Spotify


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:

  • 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.
  • LMNT: Get a free 8-count Sample Pack of LMNT’s most popular drink mix flavors with any purchase at drinklmnt.com/commune.
  • Sunlighten:  Visit sunlighten.com/commune and use code COMMUNE when you fill out the “Get Pricing’ form to save up to $1,600 on your purchase.

About the Commune Podcast

Hosted by Jeff Krasno, the Commune podcast features thoughtful conversations for modern times. Not always comfortable but definitely needed, we explore both humanity and our human-ness. How can we live healthy, purpose-filled lives and be in service of something bigger? Guests include spiritual teachers, poets, scientists, philosophers, and activists for food sustainability, functional medicine, mental and physical health, and collective healing.

Leading teachers, life-changing courses...

Your path to a happier, healthier life

Get access to our library of over 100 courses on health and nutrition, spirituality, creativity, breathwork and meditation, relationships, personal growth, sustainability, social impact and leadership.

Try Membership Free for 14 Days

Stay connected with Commune

Receive our weekly Commusings newsletter + free course announcements!