Deep within our cells our internal clock determines the cycle of life and death, the transition from our days to our dreams.

In 1962, Michel Siffre spent two months in a cave beneath the earth’s surface without any time landmarks. He discovered the existence of an “internal clock” and his experiments gave birth to a new science: chrono biology. Taking us down the same cave, we are now shown how isolation from time references influences our body’s cycle and mental state.

Video Language: English
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