What Actually Ages Your Skin — and the One Daily Habit That Protects It

If you've started wondering what actually ages your skin — the dryness that wasn't there a year ago, a little sag along the jaw, lines that seem to have arrived overnight — this episode is the calm, clear answer. Registered nurse Joanne Wismeyer spent years in emergency and clinical care before building Stella, a platform that tracks your skin over time and lines it up against your sleep, stress, cycle and lifestyle. She's seen, up close, what's really driving the changes women notice in their late 30s, 40s and 50s.Here's the part most people miss. So often it isn't that your skincare stopped working — it's that the biology underneath has changed. Your skin has oestrogen receptors, so as your hormones shift, collagen, elasticity and the skin's ability to hold water shift with them. Jo's reframe is the thread running through the whole conversation: your skin isn't the problem, it's the messenger — for your sleep, your stress, your hormones and what's on your plate. Treat it in isolation and you miss the real clues.Jo and Kelly cut through the noise — the “skinfluencer” trends, the miracle serums, the 12-step routines — and land on what actually has evidence behind it. And then, as always, one thing to do this week.