Walter Cannon

Walter Cannon was an American physiologist known for his work in understanding the body's response to stress and the concept of homeostasis, which is how the body maintains internal balance despite external changes. He introduced the idea of the "fight or flight" response, explaining how our body reacts to danger by preparing to either confront or escape from a threat. Cannon's research contributed significantly to the field of psychology and physiology, helping to explain how emotions and physical responses are interlinked. His work laid the foundation for later studies on stress and its effects on health.