The Art of Not Breathing by Sarah Alexander
If someone told me that I wouldn’t enjoy a book about diving then I would have just laughed in their face and told them they didn’t know what they were on about. I love swimming, I love the water. My parents always joked that I was a fish. Water is my affinity.
The Art of Not Breathing is about free-diving: an extreme sport where you dive underwater for as long as possible, and to do this, you have to learn how to hold your breath for a long time. The main character is this book manages four minutes.