New research contradicts the hookup stereotype by following young people as they pursue their crushes.

New research on sex and muscle signaling offers insight into how muscle functions, such as exercise, promote healthy longevity, metabolism, and cognition.

Professor Mark de Rond from Cambridge Judge Business School discusses his three years embedded with one of the UK's most prolific paedophile hunting teams, in

Young men and women often have different risk factors for acute myocardial infarction, research finds.

A one-size-fits-all approach may not be best for treating cardiovascular disease. Taking sex chromosomes into account could make for more effective and equitable care.

The organization of brains in girls with autism differs from that of boys. The findings could improve diagnosis and treatment for girls.

US counties that took part in federally-funded comprehensive sex education programs saw a decline in teen pregnancies even years later, a new study shows.

Millions of people do not fit neatly into male or female sex designations at birth, and wrong identification can set them up for a lifetime of physical and mental harm.

Oral sex is common among young people. Protection from STIs is not.

Sex differences in COVID death rates vary by state and across time, suggesting social factors play a role.