Emma watson isn't the only one speaking out on gender balance this week. The lack of women in clinical trials is being addressed by the US National Institutes of Health (NIH). It announced on Tuesday that it is giving $10.1 million to 80 scientists to explore the effect of sex differences in various medical conditions, including drug addiction, migraine and stroke. Despite numerous calls for change, inequality in the lab persists. Researchers generally prefer to study single-sex groups in the hope that this limits variability between experiments. Traditionally, females have been given short shrift because hormonal cycles need to be considered at every stage of the process - whether in clinical trials or animal studies.
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