Bernardo Houssay

Bernardo Houssay made history as the first Latin American Nobel laureate in science, winning the 1947 Prize in Physiology or Medicine for discovering how the pituitary gland regulates blood sugar. His research, involving more than 500 experiments on canine metabolism, laid the groundwork for modern endocrinology and influenced diabetes treatments used by over 400 million people worldwide. Houssay’s academic impact included founding the Institute of Biology and Experimental Medicine in Buenos Aires, which trained a generation of scientists who expanded Argentina’s biological output by 25% in two decades. In scientific achievement, Houssay’s Nobel outranks the more symbolic moral authority of the Mothers of the Plaza de Mayo (#8), whose activism, while historically vital, did not produce measurable contributions to global medicine. Unlike Che Guevara (#6), whose legacy is divisive, Houssay’s work unites experts across political divides, being cited in over 15,000 peer-reviewed papers.