If you've never heard of free diving, imagine this. Launching yourself hundreds of feet into the sea with little more than a mask, a If you've never heard of free diving, imagine this: launching ...

I had been floating face-down in the swimming pool of Matamanoa Resort in Fiji for nearly three minutes, eyes closed, breathing through a snorkel, when my freediving instructor’s voice reverberated ...

For most of us humans, the aquatic dance is the same. We dive into a pool or a lake or an ocean, perhaps hold our breath for a few seconds as we swim underwater, and then surface to blessed oxygen.

When you go away for a tropical getaway, there’s no end to the list of ways that you can fit in fun physical activity. You’ve got beach volleyball, snorkeling, kayaking...the list goes on. At one ...

Editor’s Note: Dr. Neal Pollock is research director at Divers Alert Network (DAN) and a research associate at the Center for Hyperbaric Medicine and Environmental Physiology, Duke University Medical ...