How can sunburns and sun exposure cause permanent skin damage if your skin is constantly replacing itself?

Question

Recently read something about how a few bad sunburns when you’re young can cause a large increase in cancer later in your life. How can you develop cancer several decades after you’re burnt if your skin cells are constantly dying, falling off, and regrowing?

In: Biology

Answer 1

Not really eli5, but it damages the DNA and raises the chances of a mutation that would be detrimental to your health