The more wrinkles you have on your face, the more sun you’ve been exposed to over your life—and that might help doctors guess how likely you are to get skin cancer, without needing any blood tests or...

Spending too much time in the sun over the years is why most wrinkles, sagging, and sunspots appear on your face—sunlight breaks down the skin’s support system like collagen and elastin, and creates harmful free radicals.

The more sun you’ve been in over your whole life, the more wrinkles you’ll likely have on your face as you get older—and guys tend to have more wrinkles than women.