EPISODE · Jun 3, 2026 · 18 MIN
The Wrinkle Cause That Has Nothing to Do With the Sun
from The Habit Healers · host Laurie Marbas, MD, MBA
What if the biggest driver of skin aging isn’t sun or genetics, but your blood sugar? In this episode of The Habit Healers Podcast, I’ll show you how to boost collagen naturally and rebuild your skin from the inside, no expensive serums or collagen supplements required.Here’s something I find most people have never heard. A chemical process called glycation, the same reaction that browns a steak, slowly stiffens the collagen in your skin over decades, and it’s driven by your blood sugar. In one study, researchers could estimate people’s age from their faces, and higher blood glucose tracked with looking older. The truth is, most skin care targets the surface, while the actual sagging and wrinkles happen one layer deeper, in the dermis, where what you eat and how you move matter most.In this episode, I walk you through the five inputs that shape skin quality from the metabolic level. We’ll talk about why both aerobic and strength training improve skin structure, how stabilizing blood sugar slows glycation, why vitamin C and protein feed your body’s own collagen factory, how carotenoid-rich foods can visibly shift your skin tone in about six weeks, and why deep sleep is when your collagen actually gets rebuilt. I’ll also walk through what the collagen supplement research really shows once you look past the marketing.What you’ll learn in this episode:* Why blood sugar and glycation drive wrinkles and sagging from the inside* How exercise improves skin structure through muscle-to-skin signaling* The collagen-boosting foods that supply vitamin C and protein for skin* How carotenoid-rich vegetables can shift your skin tone in six weeks* Why deep sleep is when your body rebuilds collagen* What the evidence really says about whether collagen supplements workCheck out the Habit Healers Community: https://www.skool.com/habithealers/aboutDr. Marbas Substack Article: https://drlauriemarbas.substack.com/p/the-wrinkle-cause-that-has-nothing Get full access to The Habit Healers at drlauriemarbas.substack.com/subscribe
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The Wrinkle Cause That Has Nothing to Do With the Sun
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