author
Claude Bernard
1813–1878
A pioneer of experimental medicine, this French physiologist helped turn medical research into a disciplined, testable science. His work on digestion, the liver, and the body’s internal balance shaped the way modern physiology is understood.
1 Audiobook
Introduction à l'étude de la médecine expérimentale
by Claude Bernard
About the author
Born in Saint-Julien in France in 1813, Claude Bernard did not begin as an obvious scientific prodigy. He briefly tried literary work and spent time as a pharmacy assistant before moving into medicine in Paris, where he studied under the influential physiologist François Magendie.
Bernard became one of the key figures in nineteenth-century physiology. He is especially known for discoveries about the role of the pancreas in digestion, the liver’s production of glycogen, and the way nerves regulate blood vessels. He also introduced the idea of the milieu intérieur—the body's stable internal environment—a concept that later helped inspire the modern idea of homeostasis.
Just as important as his findings was his method. Bernard argued that medicine should rely on careful experiments and evidence rather than theory alone, and his writing on experimental medicine influenced generations of researchers. He died in Paris in 1878, but his approach to scientific inquiry remains central to biomedical research.