What do we mean by "sex" and "gender"? 来自 cdrwww.who.int 喜欢 0 阅读量: 42 作者: WH Organization 关键词: gender [subject Saudi Arabia [country Eastern Mediterranean Region [region gender inequality DOI: /entity/gender/whatisgender/en/index.html ...
However, there’s always kinds of complications in this.These three brain systems -- lust, romantic love and attachment --don’t always go together.They can go together, by the way.That’s why casual sex isn’t so casual.With orgasm you get a spike of dopamine.Dopamine’s associated wit...