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The biological aspects of humans' sexuality deal with the reproductive system, the sexual response cycle, and the factors that affect these aspects.They also deal with the influence of biological factors on other aspects of sexuality, such as organic and neurological responses, Males and females are anatomically similar; this extends to some degree to the development of the reproductive system.Socio-cultural aspects of sexuality include historical developments and religious beliefs.Examples of these include Jewish views on sexual pleasure within marriage and some views of other religions on avoidance of sexual pleasures.This is a small area at the base of the brain consisting of several groups of nerve cell bodies that receives input from the limbic system.Studies have shown that within lab animals, destruction of certain areas of the hypothalamus causes the elimination of sexual behavior.

He gave sexual drives a centrality in human life, actions, and behaviors that had not been accepted before his proposal.His instinct theory said humans are driven from birth by the desire to acquire and enhance bodily pleasures, thus supporting the nature debate.Freud redefined the term sexuality to make it cover any form of pleasure that can be derived from the human body.Some argue that sexuality is determined by genetics, while others believe it is molded by the environment, or that both of these factors interact to form the individual's sexual orientation. In the former, one assumes that the features of a person innately correspond to their natural inheritance, exemplified by drives and instincts; the latter refers to the assumption that the features of a person continue to change throughout their development and nurturing, exemplified by ego ideals and formative identifications.Evolutionary perspectives on human coupling, reproduction and reproduction strategies, and social learning theory provide further views of sexuality.

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