Sex, the sum of features by which members of species can be divided into two groups—male and female—that complement each other reproductively. As pioneering sex researcher alfred kinsey put it, the only universal in human sexuality is variability itself. Sex determination is the designation for the development stage towards either male or female, while sex differentiation is the pathway towards the development of the phenotype.
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In general use in many languages, the term sex is often used to mean “sexual activity”, but for technical purposes in the context of sexuality and sexual health discussions, the above. Sexual activity should be enjoyable for everyone involved and each person should provide. People differ in how they have sex, why they have sex, and how they define what sex means.
From attraction to action, sexual behavior takes many forms.
Whether you’re contemplating having sex for the first time or have plenty of previous experience, sex can be both exciting and a little nerve. Often when people talk about sex, they are talking about sexual intercourse or penetrative sex. Sex is an important part of life for most people.
