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1 day ago · Male contraceptive. Male contraceptives, also known as male birth control, are methods of preventing pregnancy that are used by males or people who produce sperm. [1] The main forms of male contraceptives available today are condoms, vasectomy, and withdrawal, and these methods combined make up less than one-third of global contraceptive use.
20 hours ago · Learn about non-binary gender, a term that describes people who do not identify as exclusively male or female, and its history and diversity.
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- Gender identity
- Genderqueer
4 days ago · Sex differences in psychology are differences in the mental functions and behaviors of the sexes and are due to a complex interplay of biological, developmental, and cultural factors. Differences have been found in a variety of fields such as mental health, cognitive abilities, personality, emotion, sexuality, friendship, [1] and tendency ...
Apr 2, 2024 · 主に男 女の異性または同性同士の一組（カップル）が性交（交尾）を行うことであるが、複数人で性行為を行う乱交などもその一種である。 人はそれぞれ様々な 性的指向 （ 同性愛 、 フェチズム など）を持っており、「性行為」が指す範囲は幅広い。
1 day ago · さらにm216のsnpを持つc系統を合わせると日本人男性の8割がこのいずれかに属しており、現在の日本人男性の大半を占める 。 C系統の内、F3393以下の M8 のSNPを持つ系統は、非YAP（ YAP の変異を持たない）縄文系であり、 日本列島 に最初に到達した系統であると ...
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4 days ago · A transgender person (often shortened to trans person) is someone whose gender identity differs from that typically associated with the sex they were assigned at birth. [1] Some transgender people who desire medical assistance to transition from one sex to another identify as transsexual.
1 day ago · 然而，不是奴隸的男性卻經常與年輕的男奴隸一起從事肛交並扮演主動的角色——那位年輕的男奴隸則一般稱作娈童。 當時羅馬社会一般接受後者，因為他們認為肛交跟陰道性交同等；扮演容纳方的男性会被說成「像個女性一樣」，但是當一個男性對一個女性 ...
