Sneaky skin issue: Sagging
“I can spot a serious runner just by looking at her face,” says dermatologist (and marathoner) Dr Elizabeth Hale. Blame the literal pounding of pavement, which results in “runner’s face”: a loss of volume in the temple and cheek areas that eventually leads to sagging. “The constant force causes micro-tears in collagen that add up over time,” says Hale. And if you run outside, the UV exposure (a proven collagen killer) doesn’t help. So what does a long-distance-running doctor suggest? Prescription retinol (“the ultimate skin-smoother,” she says), plus a firming cream with collagen-stimulating peptides (try Olay Regenerist Micro Sculpting Cream, $48.99). Also, swipe on SPF30 before you head out the door. Easy.