ABSTRACT
This chapter presents an overview of sexual development and behaviors across the lifespan. Numerous models that have been developed to explain sexual development are presented because there is no single widely accepted definitive model or description. Misconceptions about sexuality from adolescence to old age abound; these include assumptions about promiscuity in younger individuals and asexuality in older adults. We are sexual beings from infancy until death and each stage of life presents key developmental tasks that should be met for general health and well-being. Biology and society affect our sexual development and how we understand who we are as sexual beings. Societal influences are highly relevant and ‘teach’ individuals what is acceptable in terms of sexual behavior, sexual roles, and sexual relationships.
