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  1. What is Sex? | Sex and Pleasure - Planned Parenthood

    Having a healthy sex life is good for you both emotionally and physically. Sex can help you create a connection with another person, and sexual pleasure has lots of health benefits — whether you’re …

  2. Sex - Wikipedia

    Sexual reproduction, in which two individuals produce an offspring that possesses a selection of the genetic traits of each parent, is exclusive to eukaryotes. Genetic traits are encoded in the …

  3. Sexual health - World Health Organization (WHO)

    Nov 24, 2025 · 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 …

  4. Sexual Activity - how to articles from wikiHow

    Learn about topics such as How to Masturbate Better (For Women, Men & Folks of All Genders), How to Make Sex Better, How to Have an Orgasm (for Women), and more with our helpful step-by-step …

  5. Sex | Definition, Origin, Significance, & Facts | Britannica

    Nov 27, 2025 · Sex, the sum of features by which members of species can be divided into two groups—male and female—that complement each other reproductively. Sex, sexuality, and …

  6. Sex | Psychology Today

    From attraction to action, sexual behavior takes many forms. As pioneering sex researcher Alfred Kinsey put it, the only universal in human sexuality is variability itself. Human interest in...

  7. SEX Definition & Meaning - Merriam-Webster

    The meaning of SEX is either of the two major forms of individuals that occur in many species and that are distinguished respectively as female or male especially on the basis of their reproductive organs …

  8. Sexual health Sexual health basics - Mayo Clinic

    Oct 19, 2023 · It's vital to know about sexual health and what it takes to have a good sex life. And it's just as important to be aware of what causes problems in sexual health. Don't let being uneasy keep …

  9. WebMD Sex and Relationships Center: Sex Advice for Intimacy, Sexual ...

    Find intimacy and sex advice for any relationship for a healthy and fulfilling love life.

  10. Sex and sexuality - American Psychological Association (APA)

    Sex refers to physical and biological traits—whereas gender refers especially to social or cultural traits—and the physiological and psychological processes related to procreation and sexual pleasure.