21 Jun Rowan Jacobsen: In Defense of Sunlight – Why People Who Get More Sun Live Longer
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For decades, we’ve been told to fear the sun. Avoid it. Cover up. Stay indoors. Apply sunscreen constantly. But what if one of the most powerful forces shaping human health has been misunderstood?
In this eye-opening conversation, Darin Olien sits down with award-winning journalist and author Rowan Jacobsen to explore the surprising science of sunlight, longevity, vitamin D, cardiovascular health, immune regulation, circadian rhythms, and the unintended consequences of our growing fear of the sun.
Drawing from decades of research and Rowan’s extensive investigation for his new book, they unpack why sun exposure is linked to lower rates of chronic disease, how sunlight influences everything from blood pressure to inflammation, why vitamin D supplementation isn’t the same as sunlight, and how modern indoor lifestyles may be creating what researchers call “biological darkness.” This conversation challenges conventional wisdom and offers a more nuanced, science-backed understanding of our relationship with the sun.
BREAKDOWN
What You’ll Learn in This Episode:
00:00:00 – Welcome to SuperLife
00:00:33 – Sponsor: Bite Toothpaste Bits
00:02:50 – Introducing Rohan Jacobsen
00:03:22 – Why we’ve been taught to fear the sun
00:04:02 – Rohan’s new book and questioning conventional wisdom
00:05:02 – How evolutionary biology challenges the anti-sun narrative
00:08:14 – The MIT fellowship that changed everything
00:09:13 – The blood pressure studies that sparked his investigation
00:10:15 – Sun exposure, longevity, and chronic disease
00:11:19 – Why skin cancer isn’t the whole story
00:13:04 – Science, reductionism, and missing the bigger picture
00:14:16 – The surprising mortality tradeoff of avoiding sunlight
00:17:01 – Understanding sensible sun exposure
00:18:24 – Vitamin D and what supplements miss
00:19:44 – Twenty different compounds produced by sunlight
00:21:06 – Nitric oxide and blood pressure regulation
00:23:03 – The skin as an observatory
00:24:24 – Biological darkness and life indoors
00:26:13 – Sponsor: Manna Vitality
00:28:11 – Circadian rhythms and the power of daylight
00:30:11 – Lux levels and why indoor light isn’t enough
00:32:02 – The epidemic of biological darkness
00:33:42 – Sunlight, inflammation, and chronic disease
00:35:33 – Multiple sclerosis and the sunlight connection
00:36:10 – Why humans constantly overcorrect
00:38:05 – Sun exposure as exercise for your skin
00:39:53 – Stress adaptation and resilience
00:42:20 – Practical guidelines for healthy sun exposure
00:43:24 – Why burning is the real danger
00:44:06 – Skin tone, melanin, and individualized recommendations
00:46:03 – Why darker skin requires more sun exposure
00:46:51 – Australia’s evolving sunlight guidelines
00:48:16 – Vitamin D production and skin pigmentation
00:49:30 – Darin’s personal relationship with the sun
00:51:11 – Training your skin for resilience
00:52:00 – Reclaiming joy and confidence in sunlight
00:53:24 – Seasonal darkness and modern life
00:54:19 – Challenging outdated health narratives
00:55:57 – Rohan’s work with cacao and medicinal plants
00:57:00 – The endocannabinoid system and cacao
00:57:58 – Standing in truth and questioning assumptions
00:58:30 – Final thoughts and gratitude
LINKS
Find more from Darin:
Website: https://darinolien.com/
Instagram: @Darinolien
Book: darinolien.com/fatal-conveniences-book/
Down to Earth: darinolien.com/down-to-earth/
Find More from Rowan Jacobsen
Website: rowanjacobsen.com
Instagram: @unrealrowanjacobsen
Book: In Defense of Sunlight
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Don’t forget…
You can order now by heading to darinolien.com/fatal-conveniences-book or order now on Amazon.
SPONSORS
Thank You to Our Sponsors:
Bite Toothpaste: Go to trybite.com/DARIN20 or use code DARIN20 for 20% off your first order
Manna Vitality: Go to mannavitality.com/ and use code DARIN12 for 12% off your order.
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