Brooke Corbett, MD | Dermatologist on Instagram: "Exercise is one of the most underrated skincare habits. Movement increases circulation, delivering oxygen and nutrients to the skin while helping remove waste, which supports cell turnover and a healthy glow. Regular exercise also lowers stress hormones like cortisol, which can improve breakouts, inflammation, and overall skin balance. Over time, consistent movement supports collagen production and skin tone, working alongside your skincare and i