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Sunlight is 90 % warmth and light and 10 % invisible chaos. In this episode, I unpack exactly how UVA, UVB and even air pollution tag‑team to unravel collagen, mute your microbiome, and rewrite DNA. I break down the “shadow rule,” explain why your phone’s Air Quality Index reading matters as much as the UV Index, and share evidence‑backed ways to boost autophagy, dial down oxidative stress, and keep enjoying the sun without paying for it later. Grab your SPF 50 (yes, even on cloudy days), pour some green tea, and let’s turn sun‑care into smart‑care.

Episode Resources:

Beyond SPF: The Real Rules of Summer Skin Protection

The Truth About Collagen: Biggest Myths About Taking Collagen

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