π¬ Gender and its differences are not solely socially constructed, as there appears to be a biological basis for gender norms.
π While gender norms can vary across cultures, there are some universal patterns observed in childhood play, with girls engaging more in social play and boys in competitive play.
π§ Understanding the extent of the influence of biology and culture on gender is challenging due to the inability to remove culture entirely for experimentation purposes.
π There are patterns that suggest a connection between sexuality and gender.
π¬ Boys who grow up to be gay are attracted to males and exhibit more feminine interests as children.
π Girls attracted to girls may exhibit more masculine interests in childhood.
π₯ Gender and sexual orientation are connected but not perfectly correlated.
𧬠Evolution favors heterosexuality for reproductive purposes.
π Scientists question why homosexuality persists despite potentially lower reproductive fitness.
π Variation in human traits may contribute to species resilience.
π³οΈβπ Being gay may be a natural variation, with evidence suggesting advantages to families having a certain percentage of gay children.
π In Samoa, a cultural system recognizes a third gender category called fa'afafine, where boys raised as girls partner with men.
π° Fa'afafine in families contribute their earnings to support their nieces and nephews instead of having their own children.
π There may be an evolutionary advantage for families to have a certain number of gay children, as they can help take care of nieces and nephews.
𧬠Some men may become gay due to factors in the womb, rather than genetics.
π Research shows that in families with multiple male pregnancies, the likelihood of later-born males being gay increases.
𧬠Some men are born gay due to the fraternal birth order effect, which suggests an immune response in the mother's system to male hormones.
πΊπΉ The effect only occurs in males born from the same womb, indicating a potential immune response in the mother's system.
π There is strong evidence that a certain percentage of gay individuals are born that way, while there is no strong evidence of being born straight.
π There is a heterosexist assumption that straight people require no explanation while gay people do.
π Logically speaking, being gay doesn't lead to higher reproductive fitness and logically requires an explanation.
πΌ Historically, unpleasant explanations for homosexuality include blaming mothers who are frigid or overly clingy.
π Understanding the factors that contribute to someone's sexual orientation is still limited in scientific research.
π Smells, genetic interactions, and facial symmetry are suggested as potential influences on sexual orientation.
β However, the specific reasons behind why individuals are straight or gay remain largely unknown.
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