Genetics

Biological sex affects genes for body fat, cancer, birth weight

Biological sex has a small but ubiquitous influence on gene expression in almost every type of human tissue, reports a new study from Northwestern Medicine, the University of Chicago and the Centre for Genomic Regulation ...

Psychology & Psychiatry

Why do men have better sense of direction than women?

It's been well established that men perform better than women when it comes to specific spatial tasks. But how much of that is linked to sex hormones versus cultural conditioning and other factors?

HIV & AIDS

HIV not as infectious soon after transmission as thought (Update)

People who recently have been infected with HIV may not be as highly infectious as previously believed, a finding that could improve global efforts to prevent HIV transmission and save lives. In particular, the finding bolsters ...

Health

Gay male teens use adult hookup apps to find friends, partners

Although hookup apps require users to be 18 or older, a new Northwestern Medicine study found that more than 50 percent of sexually active gay and bisexual boys ages 14 to 17 met male sexual partners on apps such as Grindr ...

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