Sex & Gender

A new study corrects a biased assumption promoted by Charles Darwin 150 years ago and repeated ever since

Three major waves of opposition to transgender health care in the past century have cited faulty science to justify hostility

Most primate societies have long been assumed to be male-dominated, but a new study shows many have females in charge or feature power sharing

New research on asexuality shows why it’s so important for doctors and therapists to distinguish between episodes of low libido and a consistent lack of sexual attraction

The answer to the question of how many sexes exist differs depending on the context

Legislators, families and advocates are fighting to protect access to gender-affirming care for transgender youth and adults nationwide

Ova don’t make a woman, and sperm don’t make a man

Decades of data support the use and safety of puberty-pausing medications, which give transgender adolescents and their families time to weigh important medical decisions

Recent research offers a tantalizing glimpse at a future in which two men can have biological children together, but any human applications remain far in the future

Cells with XX or XY chromosomes provide researchers with a new tool to study how differences in sex chromosomes can influence health and development

Hate speech from the far right is increasing the risk of violence against LGBTQ+ people such as the Club Q shooting

Menstrual regulation has a long history in the U.S., and new techniques could get around abortion restrictions