How does the immune system respond in patients with multiple sclerosis

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 the difference between the james-lange and the cannon-bard theories of emotion. answer - the cannon-bard theory proposes that emotions and arousal occur at the same time. the james-lange theory proposes the emotion is the result of arousal. schachter and singer's two-factor model proposes that arousal and cognition combine to create emotion.

Which of the following is true of vegans?