🐚Topics covered

• Zaid's journey from competitive athlete to circadian biology educator
• Circadian biology defined: body as a timing system tied to the sun & moon
• Master clock (SCN) & peripheral clocks in every organ & cell
• Natural versus artificial light impacts on the circadian system
• The light bulb invention correlated with chronic disease emergence
• Ancient sun worship confirmed by modern circadian science
• Early 1900s heliotherapy curing tuberculosis & lupus with sunlight
• UV light as a hormetic stressor, not inherently toxic
• Near-infrared preconditioning removes isolated UV cytotoxicity
• Sunscreen breaks apart the hormetic signaling
• Chemical sunscreens are transforming into photo-carcinogens under light & heat
• Sunscreen blocking UVB & preventing vitamin D synthesis
• Morning sunlight creates collagen, elastin, & natural SPF
• Midday UV treated like exercise: progressive overload approach
• Sunglasses blocking master clock signals & creating light sensitivity
• Sunglasses prevent melanin production & increase burn risk
• Violet light stops myopia progression via the EEG1 gene activation
• Circadian eyesight regeneration through unfiltered light exposure
• Skin is a circadian organ with light-sensing proteins in all layers
• Blue light disrupts skin's circadian signaling, not just eyes
• Practical timing: sunrise, UVA rise, midday UV, nighttime darkness
• Natural fabrics for nighttime skin protection from artificial light
  
  
  

About Zaid K. Dahhaj

Zaid K. Dahhaj is a circadian biology educator and coach, helping people reconnect with sunlight, natural rhythms, and the body’s innate clocks to restore health. His work bridges quantum biology, ancestral wisdom, and modern lifestyle design, making circadian science practical, relatable, and transformative.

Where to find Zaid K. Dahhaj

📝Website: https://www.zaidkdahhaj.com

✍️Substack: https://zaidkdahhaj.substack.com

📲X: https://x.com/zaidkdahhaj?s=21&t=lMyKdyY1i1JiMEgQImSA-w

📷Instagram: https://www.instagram.com/zaidkdahhaj

🎙️The 2AM Podcast: https://beacons.ai/the2ampodcast

About the Host

I’m Iris Josephina, a functional hormone specialist, orthomolecular hormone coach, and entrepreneur. Through Cycle Seeds and The Inner Rhythms Podcast, I support people in reconnecting with their cyclical nature, deepening body literacy, and reclaiming hormonal harmony from a place of sovereignty and embodied knowledge. Most people know me from Instagram, where I share stories, tools, and inspiration on cyclical living, menstrual cycles, fertility, hormones, and more. 

Let’s stay connected:

📸 Instagram: @cycleseeds

📧 Join my newsletter: https://www.cycleseeds.com/

💻 Visit the Cycle Seeds website: https://www.cycleseeds.com/

📝 Check out the blog: https://www.cycleseeds.com/blog

🎓 Holistic Hormone & Cycle Coaching Certification Training: https://www.cycleseeds.com/hhcc-training-2025-selfstudy-vip

📚Join my courses: https://www.cycleseeds.com/courses-masterclasses

📊 Chart Your Cycle Masterclass: https://cycleseeds.plugandpay.nl/checkout/chart-your-cycle-97