Culture Apothecary with Alex Clark: Episode Summary
Title: The Lie of 9 to 5: Fixing Your Circadian Rhythm
Guest: Thaddeus Owen
Release Date: May 6, 2025
In this compelling episode of Culture Apothecary with Alex Clark, host Alex Clark is joined by Thaddeus Owen, a visionary biohacker, engineer, and wellness expert, to delve deep into the intricate relationship between our circadian rhythms and modern lifestyle habits. Thaddeus, the co-founder of Dreamwalkers, shares his expertise on how sunlight, artificial light, and our daily routines silently shape our health in profound and often overlooked ways.
1. Understanding Circadian Rhythms and Health
Thaddeus Owen begins by challenging the conventional notion of the standard eight-hour sleep cycle. He asserts, “So this eight hours of sleep a night I think is bull” (00:15), advocating for a more flexible approach tailored to seasonal changes. According to Thaddeus, humans are biologically designed to sleep less during summer and more in winter, aligning our sleep patterns with natural light cycles.
2. The Impact of Light on Circadian Rhythms
Sunlight vs. Artificial Light
Thaddeus emphasizes the paramount importance of natural sunlight, stating, “Nature sets our biological clocks” (03:43). He explains that wearing sunglasses outdoors can hinder our body's ability to perceive ultraviolet (UV) light, which is essential for various health benefits such as vitamin D production and nitric oxide synthesis. By blocking UV light, sunglasses inadvertently reduce our ability to absorb these vital nutrients.
Blue Light and Its Detriments
A significant portion of the discussion focuses on the dangers of blue light, especially from artificial sources. Thaddeus warns, “The light that we're exposed to is highly intense in the blue color of light” (09:14), linking excessive blue light exposure to cancer, heart disease, diabetes, obesity, and even macular degeneration. He highlights that devices like smartphones, tablets, and LED lighting predominantly emit blue light, disrupting our natural circadian rhythms.
3. Practical Strategies for Optimizing Light Exposure
Morning Sunlight Exposure
Thaddeus advises waking up with the sunrise to reset the circadian clock. “I wake up with the sun and that is a different time all year” (04:29). He recommends spending at least 10-15 minutes outdoors barefoot, without sunglasses or contacts, to allow the body to naturally adjust to the morning light and stimulate hormone production.
Evening Light Reduction Techniques
To counteract the harmful effects of blue light at night, Thaddeus suggests eliminating artificial light exposure after sunset. “Minimize or eliminate the amount of blue light you're exposed to at night” (54:40). This can be achieved by using blue light blocking glasses, dimming lights, or utilizing red lighting in living spaces to promote melatonin production and facilitate deeper, more restorative sleep.
4. The Concept of a Light Diet
Light and Weight Management
A groundbreaking revelation in the episode is the concept of a "light diet." Thaddeus recounts a study where mice exposed to 24 hours of light became obese, while those with a 12-hour light-dark cycle maintained normal weight (18:25). This underscores the profound impact of light exposure on metabolism and weight management, independent of diet and exercise.
Hormonal Effects
Thaddeus elaborates on how blue light influences hormonal balance. “Blue light increases cortisol. It keeps us awake and alert... when we see blue light at night, our melatonin is destroyed” (20:22). This hormonal disruption leads to increased stress, anxiety, and cravings for sugar and carbohydrates, further contributing to weight gain and metabolic issues.
5. Special Considerations
Parenting and Sleep
Thaddeus addresses the challenges new parents face in maintaining healthy sleep patterns. He advises, “New moms, new dads, you can get better quality sleep if you understand how the circadian rhythm and light works” (13:03). Recommendations include using red nightlights and minimizing phone usage during nighttime feedings to preserve melatonin levels for both parents and infants.
Jet Lag Solutions
For travelers, Thaddeus offers practical advice to mitigate jet lag. “Get outside as close to dawn or sunrise as possible and stay out there for a minimum of 10 minutes” (53:57). Additionally, he emphasizes the importance of getting barefoot on concrete to enhance light absorption and facilitate the body's adjustment to new time zones.
Night Shift Workers
Addressing those who work night shifts, Thaddeus acknowledges the inherent challenges but provides strategies to lessen negative health impacts. “Wear blue light blocking glasses during your shift, get blackout curtains, and see the sunset instead of sunrise” (46:07). While he admits optimal health may not be achievable, these measures can significantly improve circadian alignment and overall well-being.
6. Tools and Technologies
Blue Light Blocking Glasses
Thaddeus advocates for the use of blue light blocking glasses, categorizing them into different types based on their effectiveness. He distinguishes between clear lenses that offer minimal protection and yellow-tinted glasses that effectively block about 50% of blue light, preventing macular degeneration and preserving melatonin (31:27).
Red Light Therapy
Highlighting the benefits of red light therapy, Thaddeus explains, “Red and infrared are the antidote to blue light” (51:28). He recommends high-quality red light panels that emit appropriate wavelengths without excessive heat, enhancing cellular repair and overall health.
7. Implementing Changes: Steps to Fix Circadian Rhythm
Thaddeus outlines a three-step approach to restoring circadian health:
- Morning Sunlight Exposure: “Get outside as close to dawn or sunrise as possible and stay out there for a minimum of 10 minutes” (53:57).
- Eliminate Blue Light at Night: Use blue light blockers, dim lighting, or red lights to minimize exposure.
- Adjust Sleep Duration Seasonally: In winter, aim for at least nine and a half hours of sleep to compensate for reduced daylight (54:58).
He emphasizes that with consistency, these changes can significantly enhance sleep quality, reduce stress, and improve overall health within six weeks (53:35).
8. Conclusion and Key Takeaways
Thaddeus Owen leaves listeners with a powerful remedy to heal a sick culture: “Get outside every day at dawn for your spirit and for your health” (58:03). By realigning our lives with natural light cycles, minimizing harmful artificial light exposure, and adopting a light-focused lifestyle, we can unlock profound improvements in physical, emotional, and spiritual well-being.
Where to Find More Information:
- Website: Dreamwalkers AI
- YouTube: Primalhacker
- Social Media: Instagram at Dreamwalkers AI
Thaddeus Owen's insights offer a transformative perspective on how revisiting our relationship with light can lead to a healthier, more vibrant life. For those seeking to optimize their circadian rhythms and embrace a more natural lifestyle, this episode serves as an indispensable guide.