What is a potential risk of overexposure to UV rays from tanning?

The potential risk of overexposure to UV rays from tanning is an increased risk of skin cancer. This option is correct because prolonged and unprotected exposure to ultraviolet (UV) radiation can damage the DNA in skin cells, leading to mutations that may result in skin cancer. The two major types of skin cancer associated with UV overexposure are melanoma and non-melanoma skin cancers, which include basal cell carcinoma and squamous cell carcinoma.

While some benefits are associated with controlled sun exposure, such as improved mood and vitamin D synthesis, these do not outweigh the risks of skin damage and cancer associated with excessive UV exposure. An enhanced immune system is not directly linked to UV exposure; in fact, immunosuppression can occur with overexposure to UV radiation, which further increases the risk of skin cancers. Therefore, understanding the dangers of UV exposure is crucial for promoting safe tanning practices and minimizing the risk of skin cancer.