Light and Leptin: Understanding These For Hormones, Fertility and Health With Sarah Kleiner
Update: 2025-10-27
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Episode Highlights With Sarah
- Light and leptin and how these interplay with each other
- The importance of leptin and what it is
- All of our hormones are circadian
- How to support these hormones naturally
- Leptin wasn’t even discovered and studied until 1994 and why we still don’t hear much about it even thought it is so important
- How this interplays with thyroid health and why this is important
- What it means when leptin is low or high
- The mitochondrial aspect of these hormones and how light environment impacts this
- How much our light environment affects almost every aspect of health
- Most important factors we can shift in our light environment
- What to know about UV light and how much of each type of light we need
- What red and infrared light at sunrise and sunset do for hormones and mitochondria
- Why hunger in the morning is a good thing and important to have
- Red light therapy panels don’t have far infrared light and it is available in the sun daily!
- If our mitochondria think we are in danger, even if we have the perfect diet, they can down-regulate to keep us safe and how to signal safety
- Her own amazing fertility journey and how these factors helped even when IVF failed
- Thyroid specific advice for supporting the thyroid and tapering off meds
- How a leptin reset can help and how to do it
- Strategies for timing food and carbs with the sun to get nourishment without gaining weight
- Her best tips for leptin reset and getting all these things into range
- Perimenopause and how light and leptin come into play
Resources Mentioned
- All of Sarah's courses - Use code Katie for 15% off
- MyCircadianApp
- Sarah's website, her Instagram, and YouTube
- Evolving Wellness Podcast
- Sarah's Free Ebooks
- Function Health lab testing
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