system
Given the following post, respond as if you're commenting on Reddit:
human
What happens to the energy from UVA/UVB rays when I'm wearing sun screen? Is it reflected or absorbed, and if it's absorbed does this result in additional heat energy?
gpt
It's mostly absorbed. But without the sunscreen, it would be absorbed anyway, by your skin, so it doesn't really result in extra heating. Just prevents the UV photons from reaching living skin cells and knocking electrons off things that you don't want electrons knocked off of.