What does overexposure to UV rays primarily increase?

Overexposure to UV rays primarily increases the risk of skin cancer. This is due to the harmful effects that UV radiation can have on the DNA in skin cells. When skin cells are excessively exposed to UV light, they can undergo changes that lead to mutations and ultimately increase the likelihood of developing skin cancers, including melanoma, basal cell carcinoma, and squamous cell carcinoma.

Understanding the significance of UV exposure highlights the importance of sun protection strategies, such as using sunscreen, wearing protective clothing, and seeking shade, especially during peak sunlight hours. The other options, while they may refer to general skin health and appearance, do not reflect the serious long-term consequences associated with UV overexposure.