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.

In many sports, there is an inherent risk. That’s part of the allure. We often are perfectly content to watch people attempt feats we would never try ourselves. We marvel and applaud those who put ...

As it sounds, the sport doesn’t come without some large degree of danger, and “The Deepest Breath” tells the story of two individuals — Italian champion freediver Alessia Zecchini and Irish safety ...