I’m 50. And the women asking what I do for my skin are often 10 or 15 years younger than me. The answer surprises them every time, because it isn’t what’s in my bathroom cabinet. Don’t get me wrong, I have my favorites. But so does every woman asking me. The difference was never the serum. I’m a nutritionist who has specialized in women’s hormones and metabolic health for over 20 years. It’s been years since I’ve had a facial. I don’t have a 10 step routine. What I have is two habits you’ve probably never connected to your skin at all. The first is sleep. Not hours in bed, but the deep repair window when your skin actually rebuilds. A single night of poor sleep measurably weakens your skin barrier. Cut your sleep by even a quarter and inflammatory markers climb, and that inflammation shows up on your face as dullness, puffiness, and breakouts. The second is your blood sugar. Every glucose spike drives a process called glycation, where sugar binds to the collagen in your skin and s...