Men in same-sex relationships are significantly less likely to have a degree in a Stem (science, technology, engineering and maths) subject than their heterosexual male peers, according to research.Until now, studies have focused largely on the gender gap in Stem, where women are still hugely underrepresented in higher education and make up less than a quarter of the Stem workforce in the UK.A study by researchers at the University of Exeter and Vanderbilt University in Nashville, Tennessee, has identified a new Stem gap based on sexual orientation, having discovered that gay men are 12% less likely to have completed a bachelor’s degree in Stem than men in heterosexual relationships.The study found that the Stem sexual orientation gap for.