Gender bias in science
Failure to take gender-specific factors into account. For example, when scientists study clinical depression again, they sometimes think that clinical depression is naturally much more common in women than in men. However, women tend to ask for professional help with depression earlier than men, who are more likely to hide their problems since they are taught not to ask for help. Depression might therefore not be more much common in women, despite what it seems. There may be a similar gender bias with ADHD. Men and women are fundamentally different, which is not taken into account. In the case of ADHD, doctors therfore see men as having a problem sooner than for women. That also affects the gender pay gap of women being paid less than men.