It’s inevitable—as you age, so does your skin. It loses fat, becomes thinner, and may not heal as quickly. But exactly how your skin ages depend on a few factors: your genes, harsh weather, and your lifestyle choices. For instance, smoking can produce free radicals. Free radicals damage cells, leading to, among other things, premature wrinkles. Primary factors contributing to wrinkled, spotted skin include normal aging, sun exposure (photoaging)…