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23/11/1976 100m undersea without breathing equipment

3:43

Jacques Mayol

3:54

Jacques Mayol tribute

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Jacques Mayol with wild dolphins

Jacques Mayol was a French free diver who was the 1st to reach 100 meters. He earned the record in Elba, Italy. During this dive, his heartbeat decreased from 60 to 27 beats/min, which is an aspect of the mammalian diving reflex that is observed in whales, seals, and dolphins.
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