An argument for the sun
Jul 27, 2026 · 30m
Summary
Host Sally Helm interviews Rowan Jacobson, author of *In Defense of Sunlight*, to explore the complex relationship between humans and solar energy. They discuss the history of heliotherapy, the shift toward sun avoidance due to skin cancer fears, and emerging science on sunlight’s benefits for heart health and mortality. The conversation challenges conventional wisdom, suggesting that moderate sun exposure offers profound physiological and cosmic connections beyond just Vitamin D.
Topics discussed
Sponsors: Mount Sinai and JustWorks
Introduction: The sun's effect on mood and health
Guest Rowan Jacobson joins to discuss his book
History of heliotherapy and the sanitarium era
The shift to sun avoidance and skin cancer warnings
Swedish study: Sunlight reduces blood clots and mortality
Discovery of nitric oxide release from skin by sunlight
Cardiovascular benefits vs. skin cancer risks
Why vitamin D supplements fail to replicate sun benefits
The complexity of sunlight's biological effects
Sponsors: Robling Sport, Verizon, JustWorks, Indeed
Red light therapy and mitochondrial energy production
Current medical advice and the 'light diet'
Philosophical view: Humans animated by light
Outro, credits, and final sponsor messages
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