Variables in psychology play a critical role in the research process. By systematically changing some variables in an experiment and measuring what happens as a result, researchers can learn more ...

Is it time for scientists to rethink how they study sex in research? That's the argument researchers make in a new Cell article.

Medical and public health research, practice and education regularly utilize race as a biologically relevant variable, operating upon historical systems of oppression.

When studying the health effects of probiotics and prebiotics, researchers often observe significant variation in responses to these gut-targeting interventions, both between individuals and ...

Tackling possible sex differences in the effects of new drugs and vaccines in humans should begin early on, in Petri dishes and animal studies.