Uploaded May 2025 | Updated September 2026, 3 hours ago

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How UV light acts as a hormetic stressor in the skin that causes DNA damage in the short term but also produces Vitamin D and its related secosteroid photoproducts that up-regulates DNA repair and clears these damaged cells with chronic UV exposure.

This evidence suggests that advice to avoid UV light is in my opinion short-sighted and incorrect.

Read the full study here - link.springer.com/chapter/10.1007/978-3-030-46227-7_2#DOI

Listen to my interview with Prof. Holick - youtu.be/8mXsQkyIh68

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#vitamind #sunlight #podcast