Does Light Impact Cellular Health and Inflammation More Than Food?  With Dr. Sara Pugh

Does Light Impact Cellular Health and Inflammation More Than Food? With Dr. Sara Pugh

Author: Dr. Jockers September 16, 2025 Duration: 1:00:01

In this episode, Dr. Jockers dives deep with Dr. Sara Pugh into how light influences your mitochondria, hormones, and inflammation in ways food alone never could. You'll hear how sunrise sets your body clock, why sunset prepares your system for rest, and how the balance of light and darkness fuels cellular health.

 

You'll learn how artificial blue light at night can disrupt cortisol, blood sugar, and cravings, and why the wrong kind of light exposure can be just as damaging as poor nutrition. Discover why your mitochondria respond to light as much as to food and how this hidden factor impacts your mood, metabolism, and resilience.

 

We also explore practical steps—like grounding, sauna use, and cold therapy—that boost your energy and improve sleep. Along the way, you'll find out why sunscreen and sunglasses may do more harm than good, and how structured water and omega-3 fats fit into the bigger picture of cellular repair.



In This Episode:

00:00 Understanding the Benefits of Sunrise and UV Light

02:23 Introduction to Dr. Sara Pugh and Quantum Biology

03:11 The Importance of Sunlight and Mitochondrial Health

15:26 The Role of UVA and UVB Light in Health

20:39 The Impact of Light on Metabolism and Hormones

25:54 Structured Water and Its Health Benefits

32:32 The Power of Keystone Bacteria

32:35 Why Most New Year's Resolutions Fail

32:53 The Problem with Probiotics

33:44 A Nine-Day Fasting Experiment

36:30 Understanding Leptin and Its Effects

37:49 The Role of Blue Light and Vitamin A

38:29 The Leptin Melanocortin Pathway

38:56 Low Leptin and Its Causes

41:55 The Importance of Lab Testing

43:12 Breaking a Long Fast: Lessons Learned

46:17 The Benefits of Sauna and Cold Therapy

50:09 Cold Face Plunge: A Simple Hack

53:15 Connecting with Nature and Embracing Discomfort

55:14 Balancing Cortisol and Growth Hormone



Looking for a clean, nutrient-packed snack? Paleo Valley's Grass-Fed Meat Sticks are free from sugar, additives, and preservatives—just pure protein and healthy fats to keep cravings in check and support muscle and immune health. They come in delicious flavors like Original, Garlic Summer Sausage, and Teriyaki, and they're even kid-approved. Try them today and get 15% off your order at paleovalley.com/jockers.


Think heartburn comes from too much stomach acid? Think again. Most digestive issues actually stem from too little stomach acid. That's why I recommend Just Thrive Digestive Bitters—they naturally stimulate stomach acid, bile, and enzymes to improve digestion, reduce bloating, and boost nutrient absorption. Save 20% off your order with code JOCKERS at justthrivehealth.com.

 

"The two biggest deficiencies driving chronic disease aren't nutrients—they're sunlight and darkness."

 

 

Subscribe to the podcast on:

Apple Podcast

Stitcher

Spotify

PodBean

 TuneIn Radio

 

Resources:

 

 

Connect with Dr. Sara Pugh:

  • Website: https://busysuperhuman.com/



Connect with Dr. Jockers:

If you are interested in being a guest on the show, we would love to hear from you! Please contact us here! - https://drjockers.com/join-us-dr-jockers-functional-nutrition-podcast/


Tune into Dr. Jockers Functional Nutrition for conversations that bridge the gap between complex science and practical, daily health choices. Hosted by Dr. David Jockers, a Doctor of Natural Medicine and Functional Nutritionist, this podcast delves into the underlying causes of health challenges rather than just treating symptoms. You’ll hear detailed discussions on metabolic flexibility, the intricacies of gut health, and sustainable methods for reducing systemic inflammation. Dr. Jockers draws from his clinical experience and research, which has been featured in media like ABC and The Dr. Oz Show, to break down strategies for improving brain function, supporting the immune system, and achieving natural detoxification. Each episode is built on a foundation of evidence, yet presented in a way that feels accessible, whether you're deeply invested in fitness or simply seeking a more vibrant life. The focus here is on providing actionable knowledge-the kind that empowers you to make informed decisions about nutrition and lifestyle. This isn't about quick fixes; it's about understanding how your body works and learning the principles that can help it thrive for the long term.
Author: Language: English Episodes: 100

Dr. Jockers Functional Nutrition
Podcast Episodes
8 Surprising Signs of a Vitamin K2 Deficiency and Best Sources [not-audio_url] [/not-audio_url]

Duration: 19:54
In this episode, Dr. Jockers breaks down the surprising signs of a Vitamin K2 deficiency and why most people aren't getting enough. Learn how this critical nutrient impacts your heart, bones, and overall hormone balance.…
3 Shocking Truths About Avocados (Watch This Before You Eat Them!) [not-audio_url] [/not-audio_url]

Duration: 15:01
In this episode, Dr. Jockers reveals three surprising truths about avocados that most people don't know. While these nutrient-packed fruits are often considered a superfood, you'll learn why not everyone thrives when eat…
My Evening Routine for Optimal Sleep & Recovery [not-audio_url] [/not-audio_url]

Duration: 24:02
In this episode, Dr. Jockers shares his personal evening routine designed to optimize sleep and brain detoxification. You'll learn how proper sleep plays a crucial role in flushing out metabolic waste and supporting long…
12 Warning Signs You are Vitamin D Deficient [not-audio_url] [/not-audio_url]

Duration: 20:15
In this episode, Dr. Jockers breaks down 12 key warning signs that may reveal a vitamin D deficiency. You'll hear how low levels of this critical nutrient affect mood, immune balance, pain sensitivity, and even sex hormo…
The Best Way to Test Blood Sugar and Metabolic Health [not-audio_url] [/not-audio_url]

Duration: 14:40
In this episode, Dr. David Jockers explains how to test blood sugar and measure metabolic health using simple tools. Learn how food, stress, and sleep impact your body's function and energy levels. Understand why fasting…