The document discusses six theories of normality: sociocultural, functional, historical, situational, medical, and statistical. The sociocultural theory defines normal behavior as what is socially acceptable within a culture. The historical theory views normality as changing over time. The situational theory emphasizes examining behaviors in context rather than in isolation. The medical theory sees abnormal behaviors as caused by underlying physical illness. The functional theory defines normality as the ability to function in society without harming oneself or others. Finally, the statistical theory defines abnormality as behaviors that few people exhibit based on averages.