Sexuality

Sexuality deals with humans' perceptions and behaviors as sexual beings. Learn about both the biological and emotional aspects of sexuality in this section.

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Genitals and Genitalia

What are the definitions of genitals and genitalia terms? Learn about the anatomy and physiology of genitals and genitalia in both males and females.

Homosexuality

What is the definition of homosexuality? Learn about homosexuality and other sexual preferences.

Lesbian

What is the definition of lesbian? Learn about how the term lesbian came to signify a homosexual woman.

Libido

What is the definition of libido? Learn about Freud's studies on libido as well as alternate theories.

Masturbation

What is the definition of masturbation? Learn about the physical and psychological benefits of masturbation.

Oral Sex

What are the definitions of oral sex terms? Learn about different forms of oral sex and the benefits of engaging in oral sex.

Orgasm

What is the definition of orgasm? Find out what's happening to your body during an orgasm and learn about its purpose in reproduction.

Paraphilia

What is the definition of paraphilia? Learn about the different forms of paraphilia to help you understand this atypical sexual behavior.

Pornography

What is the definition of pornography? Learn about pornography as a form of sexual arousal and pleasure.

Puberty

What are the definitions of puberty terms? Learn about the physical effects of puberty on a pubescent person's reproductive system.

Sadomasochism

What is the definition of sadomasochism? Learn about sadomasochism as a form of paraphilia and its effect on sexual health.

Sexual Abstinence

What is the definition of sexual abstinence? Learn about the reasons people practice sexual abstinence as a personal lifestyle choice.

Sexual Intercourse

What is the definition of sexual intercourse? Learn about the physical and psychological effects of sexual intercourse and lovemaking.

Sexual Lubrication

What is the definitions of sexual lubrication? Learn how the female reproductive system provides sexual lubrication when a woman is aroused.

Taboo

What is the definition of taboo? Learn about practices that might be considered taboo in certain religions and societies.

Tantra

What are the definitions of tantra terms? Learn about how tantra seeks to prolong and enhance the sexual connection between lovers.

What happens in the brain during an orgasm?

Sex for many people is just a precursor to this intensely pleasurable event. What exactly is going on inside when you lose control?

Can scientists make moths gay?

Scientists tricked male brown-tailed moths into trying to mate with one another instead of the females. But are sexuality and gender actually fluid concepts in the animal world? Explore animal sexuality, from intersexual clams to homosexual giraffes.

STD Symptom Checklist

STD's can be avoided and treated if you know what to look for. Become familiar with the signs and symptoms of sexually transmitted diseases.

Aging and Sex

What are the definitions of aging and sex terms? Learn how aging affects sexual health and function.

Alfred C. Kinsey: Contributions to American Sexuality

What are the definitions of Alfred Kinsey sexuality terms? Learn about Alfred Kinsey's studies of human sexuality.

Anal Sex

What is the definition of anal sex? Learn about the pleasures, discomforts and risks of having anal sex.

Bisexual Behavior

What is the definition of bisexual behavior? Learn about scientific research on bisexual behavior.

Erogenous Zones

What are the definitions of erogenous zones? Learn how erogenous zones work and how they can vary from person to person.

Estrogen and Testosterone Hormones

What are the definitions of estrogen and testosterone hormones? Learn about how estrogen and testosterone work in both male and female bodies.


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