Michel Siffre, 85, dies; explored mental effects of temporary isolation in caves
Michel Siffre, recognized as a pioneer of chronobiology, which delved into the response of our biological clocks to time, has died at the age of 85. He is celebrated for his groundbreaking experiments on himself in secluded caves that significantly advanced our understanding of human circadian rhythms. In the cold autumn of 1962, a curious crowd surrounded a small opening in the Maritime Alps, which marked the border between France and Italy. Michel Siffre, a compact and resilient geologist, emerged from the depths of this opening after spending 63 days isolated in a cave to study the effects of such…