Claude Bernard: Biography, Achievements & Lasting Legacy

By Geniuses.Club Editorial Team | August 02, 2026 | 1813–1878
Portrait of Claude Bernard
Claude Bernard

Who Was Claude Bernard?

Claude Bernard (French: [klod bɛʁnaʁ]; 12 July 1813 – 10 February 1878) was a French physiologist. I. Bernard Cohen of Harvard University called Bernard "one of the greatest of all men of science". He originated the term milieu intérieur and the associated concept of homeostasis (the latter term being coined by Walter Cannon).

Key Facts

Legacy and Impact

The influence of Claude Bernard extends far beyond his own lifetime. He fundamentally shaped our understanding of the natural world, and his discoveries and theories remain foundational to this day.

Though he passed away in 1878, his ideas continue to be studied, debated, and built upon by scholars and practitioners worldwide.

THE FREE TEST
How high is yours?

Twenty questions, eight minutes on the clock, and a percentile measured against everyone who has taken it. No sign-up.

Take the IQ test →

Discover more brilliant minds in Science

Explore Science Geniuses

Explore More

Read the full profile of Claude Bernard

View Claude Bernard's Profile →
01 · VS

Trending Comparisons

02 · TOP 100

Top IQ Rankings

03 · PRODIGIES

Child prodigies

Child prodigies →
04 · WORLD

Explore geniuses by country

Play & come back tomorrow

Daily Genius Challenge · Guess the genius
British chemist whose X-ray image 'Photo 51' was key to revealing the double-helix structure of DNA.
Tap your answer ↓
Which Genius Are You? Free IQ Test