Humans kinda need sunlight to generate enough vitamin D. So if you live in a cave, that's not going to be good for you either. But sunlight causes cancer too,

Humans kinda need sunlight to generate enough vitamin D. So if you live in a cave, that's not going to be good for you either. But sunlight causes cancer too, so what should you do? I think it should be pretty obvious that we can't avoid radiation, and we were evolved to handle a certain amount of it.