He was a pioneer in chronobiology, the study of how our bodies understand the passage of time. He was a pioneer in chronobiology, the study of how our bodies understand the passage of time. Siffre, Michel (1939-2024), Deaths (Obituaries), Caves and Caverns, Research, Biorhythms, Sleep, France NYT > Science
Michel Siffre, 85, Dies; Descended Into Caves to Study the Human Mind
