Hans Selye
János Hugo Bruno "Hans" Selye, CC (/ˈhænz ˈsɛljeɪ/; Hungarian: Selye János; January 26, 1907 – October 16, 1982), was a pioneering Austrian-Canadian endocrinologist of Hungarian origin. He conducted much important scientific work on the hypothetical non-specific response of an organism to stressors. While he did not recognize all of the many aspects of glucocorticoids, Selye was aware of their role in the stress response. Some commentators[who?] consider him the first to demonstrate the existence of biological stress.