Sex is the biological trait that determines whether an anisogamous sexually reproducing organism produces male or female gametes. [1][2][3] During sexual reproduction, a male and a female gamete …

Mar 7, 2022 · Sex is most enjoyable when you feel safe, comfortable and excited. Download Clue to track when you have protected or unprotected sex, and set reminders for STI check-ups.

Jan 10, 2025 · These sex positions for couples can bring something new and exciting to the bedroom, so be sure to add them to your repertoire.

Nov 14, 2025 · Human sexual activity is any activity—solitary, between two persons, or in a group—that induces sexual arousal. Two major determinants of human sexual activity are the inherited sexual …

When it comes to sex, being comfortable with your body, sexuality, and relationships is key. Learn more about practicing safer sex and your sexual health.

Sex can be one of the most difficult subjects for a couple to discuss: Bodies and interests change over time, and most people will experience some type of sexual problem at some point in life.

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 …

Nov 24, 2025 · Sexual health is fundamental to the overall health and well-being of individuals, couples and families, and to the social and economic development of communities and countries. Sexual …

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

Sexual Activity Learn everything you want about Sexual Activity with the wikiHow Sexual Activity Category. Learn about topics such as How to Masturbate Better (For Women, Men & Folks of All …