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.

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.

UV radiation from the sun or artificial sources can harm your skin by causing sunburn, aging it faster, weakening your skin’s defenses, and even leading to skin cancer because it reaches deep into your skin.

UV light from the sun or tanning beds can irritate your skin and harm skin cells by changing how they work.

Some skin problems can actually get better with special UV light treatments that doctors control carefully — it's like using sunlight in a safe, medical way to help heal the skin.

Ultraviolet radiation exposure induces melanin production as a protective response, but this process simultaneously causes cumulative DNA damage in skin cells, leading to photoaging and increased risk of skin cancer.