Carl Cori was an American biochemist born on December 5, 1896, in Prague, which was then part of Austria-Hungary. He is best known for his research on carbohydrate metabolism, particularly the Cori cycle, which describes how the body converts glycogen to glucose and back again. His work significantly advanced the understanding of how energy is produced and utilized in living organisms. In 1947, Carl Cori, along with his wife, Gerty Cori, was awarded the Nobel Prize in Physiology or Medicine for their contributions to the field of biochemistry. Their collaborative research laid the groundwork for future studies in metabolic processes, influencing both medicine and nutrition. Carl Cori passed away on October 6, 1984.