19. Your younger brother Ahmad normally is very calm and doesn’t easily get upset or bothered by things. He has a big exam tomorrow for his grade 12 math class and he is feeling worried about it. He...

19. Your younger brother Ahmad normally is very calm and doesn’t easily get upset or bothered by things. He has a big exam tomorrow for his grade 12 math class and he is feeling worried about it. He is wondering if something wrong with him. Explain to Ahmad about “normal” versus “pathological anxiety,” when anxiety can be helpful, and when anxiety may be a problem.