# 172: Circadian Foundations: Lux, Infrared & Light Timing with Sarah Kleiner Page: https://stenobird.com/podcast/the-reverse-aging-club-with-meredith-oke-5950472/172-circadian-foundations-lux-infrared-light-timing-with-sarah-kleiner Text version: https://stenobird.com/podcast/the-reverse-aging-club-with-meredith-oke-5950472/172-circadian-foundations-lux-infrared-light-timing-with-sarah-kleiner.md Podcast: [The Reverse Aging Club with Meredith Oke](https://stenobird.com/podcast/the-reverse-aging-club-with-meredith-oke-5950472) Published: 2026-03-12T09:00:00+00:00 Episode link: https://the-quantum-biology-collective.captivate.fm/episode/172-circadian-foundations-lux-infrared-light-timing-with-sarah-kleine Audio file: https://pscrb.fm/rss/p/episodes.captivate.fm/episode/52d1b3c9-e4b2-4107-a11b-62a83d0b78fd.mp3 Processing state: not_requested JSON: https://stenobird.com/v1/public/podcasts/the-reverse-aging-club-with-meredith-oke-5950472/episodes/172-circadian-foundations-lux-infrared-light-timing-with-sarah-kleiner Duration seconds: 3494 ## Resource 📺 Watch the Video on Spotify , YouTube & Rumble Join our FREE Community For every hour morning light is delayed, BMI increases by over a point — and most of us are getting nowhere near enough lux. Sarah Kleiner, founder of Sarah Kleiner Wellness, Board Certified in Applied Quantum Biology from the ANMCB, and host of the top 2% podcast Evolving Wellness, breaks down the light variable that could be undermining your metabolism, weight, and sleep. You'll walk away knowing: Why lux — not just blue light — is the brightness signal driving your metabolism and weight regulation Why lux exposure is cumulative and how to track and optimize it throughout your day What infrared light does for your mitochondria and why modern environments have almost entirely stripped it away Connect with Sarah Kleiner Download MyCircadianApp (with the lux meter!) in the app store on your device. Use code QBCPOD App website: MyCircadianApp.com App IG: https://www.instagram.com/mycircadianapp/ Sarah’s Substack: https://substack.com/@sarahkleinerwellness Sarah’s IG: https://www.instagram.com/sarahkleinerwellness Sarah’s website: https://www.sarahkleinerwellness.com Full show notes, research links, and transcript excerpt at qbcpod.com . Connect with The Reverse Aging Club: On Substack: reverseagingclub.substack.com Join us for a weekly live hang out, Thursdays at 12noon ET https://zoom.us/meeting/register/j_07VPOWRbWYtZWbimO9bg Institute of Applied Quantum Biology RAC is a proud supporter of the non profit Institute of Applied Quantum Biology, a 501c3 dedicated to integrating quantum and circadian biology into health and wellness practice. Without ipublic support this science will take decades to become widely adopted. Donate to launch JAQB: https://givebutter.com/AQBjournallaunch You can join th… ## Actions - request_transcript: `POST https://stenobird.com/v1/public/podcasts/the-reverse-aging-club-with-meredith-oke-5950472/episodes/172-circadian-foundations-lux-infrared-light-timing-with-sarah-kleiner/transcription-requests` — Idempotently request low-priority transcript generation for this episode. - read_markdown: `GET https://stenobird.com/podcast/the-reverse-aging-club-with-meredith-oke-5950472/172-circadian-foundations-lux-infrared-light-timing-with-sarah-kleiner.md` — Read the agent-friendly Markdown representation of this episode resource. A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed. ## Transcript Full transcripts are not published on public pages unless there is a clear rights basis.