The hormone cortisol linked to increased aggression in 10-year-old boys https://t.co/H40M6CX09X pic.twitter.com/DKapFBPFPb — PsyPost.org (@PsyPost) March 17, 2016 The authors, among them Eider Pascual-Sagastizabal, a researcher at The University of the Basque Country, measured the levels of three steroid hormones: testosterone, estradiol and cortisol. The results demonstrated that there wasContinue Reading