For the average person, who does minimal amounts of exercise, fat supplies about of the body’s ongoing energy needs during rest.

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?

Which stage of stress includes the fight or flight response?

Should basketball replace baseball as americans national pastime?