# 513: The Circadian Rhythm and Hormone Connection with Sarah Kleiner

Page: https://stenobird.com/podcast/midlife-conversations-with-natalie-jill-fat-loss-hormones-health-for-women-over-40-236815/513-the-circadian-rhythm-and-hormone-connection-with-sarah-kleiner
Text version: https://stenobird.com/podcast/midlife-conversations-with-natalie-jill-fat-loss-hormones-health-for-women-over-40-236815/513-the-circadian-rhythm-and-hormone-connection-with-sarah-kleiner.md
Podcast: [Midlife Conversations with Natalie Jill: Fat Loss, Hormones & Health for Women Over 40](https://stenobird.com/podcast/midlife-conversations-with-natalie-jill-fat-loss-hormones-health-for-women-over-40-236815)
Published: 2026-03-17T07:00:00+00:00
Episode link: https://levelingup.libsyn.com/513-hormones-health-and-circadian-rhythm-with-sarah-kleiner
Audio file: https://traffic.libsyn.com/secure/levelingup/ep_sarah_klein_MLC.mp3?dest-id=801512
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JSON: https://stenobird.com/v1/public/podcasts/midlife-conversations-with-natalie-jill-fat-loss-hormones-health-for-women-over-40-236815/episodes/513-the-circadian-rhythm-and-hormone-connection-with-sarah-kleiner
Duration seconds: 3661

## Resource

What if your hormone imbalance has nothing to do with your hormones and everything to do with the light in your house? Health detective and certified quantum biology practitioner Sarah Kleiner joins us to break down one of the most underconversed topics in women's midlife health: how your light environment is directly disrupting your hormones, your metabolism, your thyroid, your gut, and your sleep... and what you can actually do about it today. Sarah shares her deeply personal journey through irregular cycles, two miscarriages, two failed IVF rounds, and eventually a successful pregnancy at 43, all made possible by rebuilding her health from the circadian rhythm up. She explains why going carnivore helped and then hurt her, how artificial light at night is functionally the same as not sleeping, and why estrogen dominance might actually be a lighting problem. We also dig into the nuanced conversation around HRT: the peer pressure to do it, the risks of doing it without understanding your detox pathways and genetics, and why both "HRT causes cancer" and "HRT doesn't cause cancer" are incomplete statements. Sarah's philosophy? Fix the terrain first, then make an informed decision. If you have ever felt like you are doing everything right and still not feeling well, this episode will give you a new lens to look through and a clear place to start. Learn More About Sarah Kleiner Instagram ➜ https://www.instagram.com/SarahKleinerWellness Website ➜ https://SarahKleinerWellness.com Thank you to our show sponsors! BIOPTIMIZERS: Get the digestive enzymes I take with every meal here https://www.bioptimizers.com/nataliejill Free Gifts for being a listener of Midlife Conversations! Mastering the Midlife Midsection Guide: https://theflatbellyguide.com/ Age Optimizing and Supplement…

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