The sun can be helpful in many ways. If sunlight hits bare skin in large quantities then the body is capable of making large amounts of vitamin D. Many people think that the sun is the best way to achieve good skin without consequences. At first, one might see a improvement in skin health but this actual accelerates aging and increases your risk of skin cancer. (Berman, 2017) Skin cancer occurs when the skin cells have a mutation. This is a result of UV rays changing their DNA. (American Cancer Society, 2017) The amount of UV rays changes from time to time, and bases on your location.(American Cancer Society, 2017) To find the amount of rays use the UV index to see how strong the rays are. It shows the strength on a scale of one through 11, for more info on it click here.
UV Rays contain radiation. That radiation causes change in the DNA making the affected skin cells not productive, while making them invisible to the cells, . Cells normally die when they become old and useless, but the cancer makes the cells able to survive often forming clumps of cells called tumors due to their rapid, unstoppable reproduction. (National Cancer Institute, 2015)