As you sit in the library with your friend studying for your weekly quiz on the integumentary system, you come upon an article a
bout the hazards of prolonged exposure to the sun's rays. Your curious nature leads you to research the subject further. You're fascinated to learn that minimal exposure to the sun allows you skin to manufacture vitamin D, which is important to help maintain homeostasis. You also read that although sunscreen can help protect you from the ultraviolet (UV) rays of the sun, some medications can actually increase a person's sensitivity to the sunlight.