How does the sun affect your skin?

Answer 1

it can cause wrinkles and skin cancer.
The sun affects your skin (and when it affects the skin, it affects your health) by emitting harmful UV rays and other kinds of radiation. Earth's atmosphere shields out most of the radiation and rays, but not all of it, so some seeps through the thick atmosphere. The UV rays and other rays and radiation that seeps through fry your skin cells and mess everything up. Sometimes it doesn't even fry them or do anything to them that you notice. Radiation from the sun can't really be felt until it is too late. This affects the skin because it is the extremity of the body, so it absorbs the bad rays, which aren't supposed to be absorbed, thereby having the skin commit suicide, except the skin just harms itself, not kills itself.
The sun gives us vitiam C and D

If you stay in the sun for at least 30 min. everyday then the sun can actually help ward of breast and colon cancer

and it makes us happy!
It has something to do with vitamin D and the absorption, which gives us energy. Although too much can cause tiredness.