The science of freediving
YOUR BODY’S AMAZING REACTION TO WATER
Writer James Nestor explores the science of the “mammalian dive reflex,” the phenomenon by which water triggers an immediate decrease in heart rate.
While on assignment in Greece, journalist James Nestor witnessed something that confounded him: a man diving 300 feet below the ocean’s surface on a single breath of air and returning four minutes later, unharmed and smiling.
In Deep , Nestor embeds with a gang of extreme athletes and renegade researchers who are transforming not only our knowledge of the planet and its creatures, but also our understanding of the human body and mind.
“On land, the equivalent pressures would be debilitating. But not in water. And the deeper we dive, the stronger the amphibious reflexes become.Scholander had documented one of the most extreme transformations ever discovered in the human body, a change that occurred only in water. He called it the Master Switch of Life.”