Detailed answer

Exposure to the sun's harmful ultraviolet (UV) rays can lead to various effects on the skin. Firstly, it causes premature aging, also known as photoaging, characterized by the development of wrinkles, fine lines, and age spots. The UV rays damage the collagen and elastin fibers, which contribute to the skin's firmness and elasticity. Moreover, prolonged sun exposure weakens the skin's ability to regenerate, leading to thinning and sagging of the skin. Secondly, sun damage can result in an increased risk of skin cancer. UV radiation damages the DNA of skin cells, leading to the development of malignant tumors. Common types of skin cancer caused by sun exposure include basal cell carcinoma, squamous cell carcinoma, and melanoma. Therefore, protecting the skin from the sun is crucial to maintain its health and prevent these harmful effects.