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...

Spending too much time in the sun over the years causes your skin to break down its natural support system—like tearing up the strings in a trampoline—which makes your skin sag, wrinkle, and develop dark spots.

Too much sun exposure can seriously harm your skin by damaging cells, aging it faster, weakening your skin’s defenses, and even leading to skin cancer.

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 scans.

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.

UV light doesn’t just affect your skin — it might also change how your whole body works, possibly impacting things like inflammation, cancer, and even behavior.