Many people are curious to know what controls a human beings sexual orientation. There has been an ongoing debate about nature versus nurture and its connection to human sexual orientation. The are also other influences that has an affect on sexual differentiation and gender idenity. This paper will explain the interaction between hormones and behavior, and how these interactions affect the the determination of gender identiy.

The sexual behavior of humans are shaped and influenced by cultural factors that leads human sexuality to be expressed in various ways through many cultures historically. The biological factors in sexual differentiation are very important to the human because it allows a person to grasp and understand the complexities and problems that are involved in human sexual conditions. The premature stages of sexual differentiation after birth are influenced by environmental factors. Once the child advance from childhood and into young adulthood the influences of biological, environmetal, and culture has an effect on sexual differentiation.

According to Ault and Brzuzy (2009), gender identity is a multifaceted system of ideas surrounding masculinity and femininity, in terms of the roles prescribed to men and women by society, and how they relate to maleness and femaleness in relation to the self. Gender identity is presented through behavioral expressions of masculinity and femininity, feelings surrounding the body as a sexual, and individual perceptions regarding how others will respond to expressions of gender (Ault & Brzuzy, 2009).

Gender refers to humans ability of awareness and reaction to biological that is determined by biological, psychological and sociological factors. Gender is a that refer to masculine for male and feminine for female. The human body contain hormones that are key to the body that secrete different