Bob brings his 14 year old son to see you for counseling). Bob states, “John has been acting different recently and every time I say anything to him he stomps off to his room. He is also failing in school and was taken off the soccer team because of his grades.” John does not say anything to you and when you ask John the reason for this visit today he responds with, “Ask him” pointing to his father.

As you sit in the library with your friend studying for your weekly quiz on the integumentary system, you come upon an article about 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 maintain homeostasis. you also read that although sunscreen can protect you from the ultraviolet (uv) rays of the sun, some medications can actually increase a person's sensitivity to the sunlight.