What assumptions might you make about one or two way communicatiob

How do the uv rays cause damage?   what exactly causes the skin to burn;   can you be more specific about this mechanism?   3. how do photosensitive medications increase a person's sensitivity to sunlight and therefore increase their risk of getting burned?     what kind of medications can increase photo-sensitivity, can you think of some examples?

Explain how to barriers you describe in a part can lead to long term consequences related to risk behavior and negative health outcomes for young people

What factors are contributing to the increase in obesity among children?